| Autor | Abhimanyu Tharayil | |
|---|---|---|
| Autor | R. Rajakumari | |
| Autor | Miran Mozetic | |
| Autor | Gregor Primc | |
| Autor | Sabu Thomas | |
| Typ | Článek v časopise | |
| Datum | 2021-12-10 | |
| Abstrakt | There is an unprecedented concern regarding the viral strain SARS-CoV-2 and especially its respiratory disease more commonly known as COVID-19. SARS-CoV-2 virus has the ability to survive on different surfaces for extended periods, ranging from days up to months. The new infectious properties of SARS-CoV-2 vary depending on the properties of fomite surfaces. In this review, we summarize the risk factors involved in the indirect transmission pathways of SARS-CoV-2 strains on fomite surfaces. The main mode of indirect transmission is the contamination of porous and non-porous inanimate surfaces such as textile surfaces that include clothes and most importantly personal protective equipment like personal protective equipment kits, masks, etc. In the second part of the review, we highlight materials and processes that can actively reduce the SARS-CoV-2 surface contamination pattern and the associated transmission routes. The review also focuses on some general methodologies for designing advanced and effective antiviral surfaces by physical and chemical modifications, viral inhibitors, etc. | |
| Přístup | 16. 12. 2021 15:12:23 | |
| Publikace | Interface Focus | |
| Krátký název | Contact transmission of SARS-CoV-2 on fomite surfaces | |
| Ročník | 12 | |
| Číslo | 1 | |
| Rozsah | 20210042 | |
| Extra | Publisher: Royal Society | |
| Katalog knihovny | royalsocietypublishing.org (Atypon) | |
| DOI | 10.1098/rsfs.2021.0042 | |
| Select in Zotero | zotero://select/library/items/M2YQMWRE | |
| Datum přidání | 16. 12. 2021 15:12:23 | |
| Upraveno | 16. 12. 2021 15:23:47 |
| Autor | Daniel J. da Silva | |
|---|---|---|
| Autor | Alana G. Souza | |
| Autor | Greiciele da S. Ferreira | |
| Autor | Adriana Duran | |
| Autor | Aline D. Cabral | |
| Autor | Fernando L. A. Fonseca | |
| Autor | Rodrigo F. Bueno | |
| Autor | Derval S. Rosa | |
| Typ | Článek v časopise | |
| Datum | 2021-12-06 | |
| Abstrakt | The successful development of multifunctional cotton fabrics with antimicrobial and antiviral activities is essential to prevent the proliferation of microorganisms and transmission of coronavirus virions today, especially with the emergence of new variants of SARS-CoV-2. In this work, we developed antimicrobial cotton fabrics with Ag/TiO2 nanoparticles synthesized via sonochemistry. Here, we show that more than 50% of infectious SARS-CoV-2 remain active after prolonged direct contact self-disinfecting materials capable of inhibiting the proliferation of Escherichia coli and Staphylococcus aureus. The findings bring several epidemiologic worries about using silver and TiO2 as self-disinfecting nanostructured agents to prevent coronavirus transmission. | |
| Přístup | 16. 12. 2021 15:18:04 | |
| Publikace | ACS Applied Nano Materials | |
| Extra | Publisher: American Chemical Society | |
| Katalog knihovny | ACS Publications | |
| Zkrácený název časopisu | ACS Appl. Nano Mater. | |
| DOI | 10.1021/acsanm.1c03492 | |
| Select in Zotero | zotero://select/library/items/WJEJ97YY | |
| Datum přidání | 16. 12. 2021 15:18:04 | |
| Upraveno | 16. 12. 2021 15:23:20 |
| Autor | Aditya Kumar | |
|---|---|---|
| Autor | Kalpita Nath | |
| Autor | Yash Parekh | |
| Autor | M. Ghalib Enayathullah | |
| Autor | Kiran Kumar Bokara | |
| Autor | Apruba Sinhamahapatra | |
| Typ | Článek v časopise | |
| Datum | 2021-12-01 | |
| Abstrakt | Surfaces containing antiviral nanoparticles could play a crucial role in minimizing the virus spread further, specifically for COVID-19. Here in, we have developed a facile and durable antiviral and antimicrobial fabric containing photodeposited silver nanoparticles. Scanning and transmission electron microscopy, UV-VIS spectroscopy, and XPS are used to characterize the silver nanoparticles deposited cloth. It is evident that Ag0/Ag+ redox couple is formed during fabrication, which acts as an active agent. Antiviral testing results show that silver nanoparticles deposited fabric exhibits 97% viral reduction specific to SARS-CoV-2. Besides its excellent antiviral property, the modified fabric also offers antimicrobial efficiency when tested with the airborne human pathogenic bacteria Escherichia coli and fungi Aspergillus Niger. The direct photodeposition provides Ag-O-C interaction leads to firmly grafted nanoparticles on fabric allow the modified fabric to sustain the laundry durability test. The straightforward strategy to prepare an efficient antimicrobial cloth can attract rapid large-scale industrial production. | |
| Přístup | 16. 12. 2021 15:00:50 | |
| Publikace | Colloid and Interface Science Communications | |
| Jazyk | en | |
| Ročník | 45 | |
| Rozsah | 100542 | |
| ISSN | 2215-0382 | |
| Katalog knihovny | ScienceDirect | |
| Zkrácený název časopisu | Colloid and Interface Science Communications | |
| DOI | 10.1016/j.colcom.2021.100542 | |
| Select in Zotero | zotero://select/library/items/UFSBFM6P | |
| Datum přidání | 16. 12. 2021 15:00:50 | |
| Upraveno | 16. 12. 2021 15:24:09 |
| Autor | Kazuo Takayama | |
|---|---|---|
| Autor | Alberto Tuñón-Molina | |
| Autor | Alba Cano-Vicent | |
| Autor | Yukiko Muramoto | |
| Autor | Takeshi Noda | |
| Autor | José Luis Aparicio-Collado | |
| Autor | Roser Sabater i Serra | |
| Autor | Miguel Martí | |
| Autor | Ángel Serrano-Aroca | |
| Typ | Článek v časopise | |
| Datum | 2021-11-24 | |
| Abstrakt | The Coronavirus Disease (COVID-19) pandemic is demanding the rapid action of the authorities and scientific community in order to find new antimicrobial solutions that could inactivate the pathogen SARS-CoV-2 that causes this disease. Gram-positive bacteria contribute to severe pneumonia associated with COVID-19, and their resistance to antibiotics is exponentially increasing. In this regard, non-woven fabrics are currently used for the fabrication of infection prevention clothing such as face masks, caps, scrubs, shirts, trousers, disposable gowns, overalls, hoods, aprons and shoe covers as protective tools against viral and bacterial infections. However, these non-woven fabrics are made of materials that do not exhibit intrinsic antimicrobial activity. Thus, we have here developed non-woven fabrics with antimicrobial coatings of cranberry extracts capable of inactivating enveloped viruses such as SARS-CoV-2 and the bacteriophage phi 6 (about 99% of viral inactivation in 1 min of viral contact), and two multidrug-resistant bacteria: the methicillin-resistant Staphylococcus aureus and the methicillin-resistant Staphylococcus epidermidis. The morphology, thermal and mechanical properties of the produced filters were characterized by optical and electron microscopy, differential scanning calorimetry, thermogravimetry and dynamic mechanical thermal analysis. The non-toxicity of these advanced technologies was ensured using a Caenorhabditis elegans in vivo model. These results open up a new prevention path using natural and biodegradable compounds for the fabrication of infection prevention clothing in the current COVID-19 pandemic and microbial resistant era. | |
| Přístup | 16. 12. 2021 15:01:02 | |
| Publikace | International Journal of Molecular Sciences | |
| Jazyk | en | |
| Ročník | 22 | |
| Číslo | 23 | |
| Rozsah | 12719 | |
| Práva | http://creativecommons.org/licenses/by/3.0/ | |
| Extra | Number: 23 Publisher: Multidisciplinary Digital Publishing Institute | |
| Katalog knihovny | www.mdpi.com | |
| DOI | 10.3390/ijms222312719 | |
| Select in Zotero | zotero://select/library/items/HIPMN9SK | |
| Datum přidání | 16. 12. 2021 13:55:07 | |
| Upraveno | 16. 12. 2021 15:24:50 |
Export Date: 16 December 2021
Export Date: 16 December 2021
| Autor | Eun-Hee Lee | |
|---|---|---|
| Autor | Yunsoo Chang | |
| Autor | Seung-Woo Lee | |
| Typ | Článek v časopise | |
| Datum | 2021-11 | |
| Abstrakt | The coronavirus disease 2019 (COVID-19) pandemic is a general health crisis and has irreversible impacts on human societies. Globally, all people are at risk of being exposed to the novel coronavirus through transmission of airborne bioaerosols. Public health actions, such as wearing a mask, are highly recommended to reduce the transmission of infectious diseases. The appropriate use of masks is necessary for effectively preventing the transmission of airborne bioaerosols. The World Health Organization (WHO) suggests washing fabric masks or throwing away disposable masks after they are used. However, people often use masks more than once without washing or disposing them. The prolonged use of a single mask might—as a result of the user habitually touching the mask—promote the spread of pathogens from airborne bioaerosols that have accumulated on the mask. Therefore, it is necessary to evaluate how long the living components of bioaerosols can be viable on the masks. Here, we evaluated the viability of airborne Bacillus subtilis (B. subtilis) in bioaerosols filtered on woven and anti-droplet (non-woven) face masks. As a simulation of being simultaneously exposed to sand dust and bioaerosols, the viability rates of bioaerosols that had accumulated on masks were also tested against fine dust and airborne droplets containing bacteria. The bioaerosols survived on the masks immediately after the masks were used to filter the bioaerosols, and the bacteria significantly proliferated after one day of storage. Thereafter, the number of viable cells in the filtered bioaerosols gradually decreased over time, and the viability of B. subtilis in bioaerosols on the masks varied, depending on the mask material used (woven or non-woven). Despite the reduction in viability, bioaerosols containing living components were still found in both woven and anti-droplet masks even after six days of storage and it took nine days not to have found them on masks. The number of viable cells in bioaerosols on masks significantly decreased upon exposure of the masks to fine dust. The results of this study should provide useful information on how to appropriately use masks to increase their duration of effectiveness against bioaerosols. | |
| Přístup | 16. 12. 2021 14:04:23 | |
| Publikace | Atmosphere | |
| Jazyk | en | |
| Ročník | 12 | |
| Číslo | 11 | |
| Rozsah | 1496 | |
| Práva | http://creativecommons.org/licenses/by/3.0/ | |
| Extra | Number: 11 Publisher: Multidisciplinary Digital Publishing Institute | |
| Katalog knihovny | www.mdpi.com | |
| DOI | 10.3390/atmos12111496 | |
| Select in Zotero | zotero://select/library/items/M3PYJ7PC | |
| Datum přidání | 16. 12. 2021 13:55:08 | |
| Upraveno | 16. 12. 2021 15:22:38 |
Export Date: 16 December 2021
Export Date: 16 December 2021
| Autor | Toufique Ahmed | |
|---|---|---|
| Autor | R. Tugrul Ogulata | |
| Autor | Sabiha Sezgin Bozok | |
| Typ | Článek v časopise | |
| Datum | 2021-10-29 | |
| Abstrakt | Coronavirus-2 (SARS-CoV-2), commonly known as Covid-19, has turned into a worldwide menace, causing death to millions of people. Coronavirus-2 transmits primarily by respiratory droplets. In this circumstance, different forms of PPEs can efficiently prevent this transmission. However, the virus can survive on the conventional PPEs for a long time. Hence, silver nanoparticles (AgNPs) incorporated PPEs can be an excellent approach for preventing contamination and spreading the virus. This paper reviewed the Covid-19 morphology, mechanism of AgNPs against SARS-CoV-2 virus, the necessity of antiviral PPEs, and AgNPs incorporation methods. The Covid-19 virus has four types of protein. S-protein is most crucial among them, as it causes rapid replication in the host body. The glycine and alanine composed HR1 of S-protein is the ideal target for antiviral action. AgNPs can inhibit Glycine and Alanine of S-protein along with other proteins. Therefore, AgNPs incorporated PPEs can effectively protect the users from viral attacks. Although cotton fiber has insufficient antimicrobial activity, it is still the dominant textile material in the health sector due to its unrivaled comfortability. In this context, AgNPs incorporated cotton might be a savior. Furthermore, it might pave the door for reusable PPEs. | |
| Přístup | 16. 11. 2021 16:28:25 | |
| Publikace | The Journal of The Textile Institute | |
| Jazyk | English | |
| Ročník | 0 | |
| Číslo | 0 | |
| Rozsah | 1-14 | |
| Extra | Publisher: Taylor & Francis _eprint: https://doi.org/10.1080/00405000.2021.1996730 | |
| ISSN | 0040-5000 | |
| Katalog knihovny | Taylor and Francis+NEJM | |
| Zkrácený název časopisu | J. Text. Inst. | |
| DOI | 10.1080/00405000.2021.1996730 | |
| Select in Zotero | zotero://select/library/items/6MLLYSTE | |
| Datum přidání | 16. 11. 2021 16:28:05 | |
| Upraveno | 16. 11. 2021 16:36:44 |
| Autor | Mohsen Hosseini | |
|---|---|---|
| Autor | Saeed Behzadinasab | |
| Autor | Zachary Benmamoun | |
| Autor | William A. Ducker | |
| Typ | Článek v časopise | |
| Datum | 2021-10-01 | |
| Abstrakt | The COVID-19 pandemic had a major impact on life in 2020 and 2021. One method of transmission occurs when the causative virus, SARS-CoV-2, contaminates solids. Understanding and controlling the interaction with solids is thus potentially important for limiting the spread of the disease. We review work that describes the prevalence of the virus on common objects, the longevity of the virus on solids, and surface coatings that are designed to inactivate the virus. Engineered coatings have already succeeded in producing a large reduction in viral infectivity from surfaces. We also review work describing inactivation on facemasks and clothing and discuss probable mechanisms of inactivation of the virus at surfaces. | |
| Přístup | 15. 10. 2021 16:26:17 | |
| Publikace | Current Opinion in Colloid & Interface Science | |
| Jazyk | en | |
| Ročník | 55 | |
| Rozsah | 101481 | |
| ISSN | 1359-0294 | |
| Katalog knihovny | ScienceDirect | |
| Zkrácený název časopisu | Current Opinion in Colloid & Interface Science | |
| DOI | 10.1016/j.cocis.2021.101481 | |
| Select in Zotero | zotero://select/library/items/R3MP5GM3 | |
| Datum přidání | 15. 10. 2021 16:26:17 | |
| Upraveno | 18. 10. 2021 9:05:02 |
| Autor | Angela Graciela Deliga Schroder | |
|---|---|---|
| Autor | José Stechman-Neto | |
| Autor | Isabela Bittencourt Basso | |
| Autor | Flavio Magno Gonçalves | |
| Autor | Bianca L. Cavalcante-Leão | |
| Autor | Glória Cortz Ravazzi | |
| Autor | Bianca Simone Zeigelboim | |
| Autor | Bruna Povh | |
| Autor | Odilon Guariza-Filho | |
| Autor | Rosane Sampaio Santos | |
| Autor | Cristiano Miranda de Araujo | |
| Typ | Článek v časopise | |
| Datum | 2021-09-25 | |
| Abstrakt | This systematic review aimed to study the survival time of the virus from the coronavidae family on various materials and surfaces, thus enabling the adoption of preventive measures mainly in public environments. The electronic databases selected as a source of information were PubMed/Medline, Excerpta Medica database (EMBASE), Latin American and Caribbean Literature in Health Sciences (LILACS), Web of Science, Scopus, and LIVIVO; grey literature (Google Scholar, ProQuest, and OpenGrey) was also examined. The last electronic search of the six databases retrieved 4287 references. After removing the duplicate references, the titles and abstracts (phase 1) were read, and 37 articles were selected for complete reading (phase 2), which resulted in 13 included studies. All the studies evaluated coronavirus survival on the following surfaces and objects: stainless steel, glass, plastic, wood, metal, cloth, paper, cotton, latex, polystyrene petri dish, aluminium, copper, cardboard, Teflon, polyvinyl chloride (PVC), silicone rubber and disposable fabric. On surfaces such as glass, plastic, and steel, the virus has greater stability than it does on copper, fabric, paper, and cardboard. The conditions of temperature, relative humidity, absorption power, and texture were also considered important factors in the survival of the virus. | |
| Přístup | 15. 10. 2021 16:18:27 | |
| Publikace | Research, Society and Development | |
| Krátký název | Coronavirus survival time on inanimate surfaces | |
| Jazyk | en | |
| Ročník | 10 | |
| Číslo | 12 | |
| Rozsah | e398101220513-e398101220513 | |
| Práva | Copyright (c) 2021 Angela Graciela Deliga Schroder; José Stechman-Neto; Isabela Bittencourt Basso; Flavio Magno Gonçalves; Bianca L. Cavalcante-Leão; Glória Cortz Ravazzi; Bianca Simone Zeigelboim; Bruna Povh; Odilon Guariza-Filho; Rosane Sampaio Santos; Cristiano Miranda de Araujo | |
| Extra | Number: 12 | |
| ISSN | 2525-3409 | |
| Katalog knihovny | rsdjournal.org | |
| DOI | 10.33448/rsd-v10i12.20513 | |
| Select in Zotero | zotero://select/library/items/D3KGHFBF | |
| Datum přidání | 15. 10. 2021 16:18:27 | |
| Upraveno | 18. 10. 2021 9:05:15 |
| Autor | Ana Luíza Silva Rocha | |
|---|---|---|
| Autor | Josilene Ramos Pinheiro | |
| Autor | Thamilin Costa Nakamura | |
| Autor | José Domingos Santos da Silva | |
| Autor | Beatriz Gonçalves Silva Rocha | |
| Autor | Raphael Contelli Klein | |
| Autor | Alexander Birbrair | |
| Autor | Jaime Henrique Amorim | |
| Typ | Článek v časopise | |
| Datum | 2021-08-05 | |
| Abstrakt | It is not clear if COVID-19 can be indirectly transmitted. It is not possible to conclude the role of the environment in transmission of SARS-CoV-2 without studying areas in which people transit in great numbers. In this work we aimed to better understand the role of environment in the spread of COVID-19. We investigated the presence of SARS-CoV-2 in fomites as well as in the air and in the sewage using RT-qPCR. We studied both, a reference market area and a COVID-19 reference hospital at Barreiras city, Brazil. We collected and analyzed a total of 418 samples from mask fronts, cell phones, paper money, card machines, sewage, air and bedding during the ascendant phase of the epidemiological curve of COVID-19 in Barreiras. As a result, we detected the human RNAse P gene in most of samples, which indicates the presence of human cells or their fragments in specimens. However, we did not detect any trace of SARS-CoV-2 in all samples analyzed. We conclude that, so far, the environment and inanimate materials did not have an important role in COVID-19 transmission in Barreiras city. Therefore, similar results can probably be found in other cities, mainly those with COVID-19 epidemiological scenarios similar to that of Barreiras city. Our study is a small piece indicating the possibility that fomites and the environment do not have an important role in COVID-19 transmission. However, further studies are necessary to better understand the world scenario. | |
| Přístup | 15. 10. 2021 16:30:51 | |
| URL | https://www.nature.com/articles/s41598-021-95479-5 | |
| Publikace | Scientific Reports | |
| Jazyk | en | |
| Ročník | 11 | |
| Číslo | 1 | |
| Rozsah | 15960 | |
| Práva | 2021 The Author(s) | |
| Extra | Bandiera_abtest: a Cc_license_type: cc_by Cg_type: Nature Research Journals Number: 1 Primary_atype: Research Publisher: Nature Publishing Group Subject_term: Bacteria;Virology Subject_term_id: bacteria;virology | |
| ISSN | 2045-2322 | |
| Katalog knihovny | www.nature.com | |
| Zkrácený název časopisu | Sci Rep | |
| DOI | 10.1038/s41598-021-95479-5 | |
| Select in Zotero | zotero://select/library/items/QZ9I2VKP | |
| Datum přidání | 15. 10. 2021 16:30:51 | |
| Upraveno | 15. 10. 2021 16:30:51 |
| Autor | M. A. Nikiforova | |
|---|---|---|
| Autor | A. E. Siniavin | |
| Autor | E. Shidlovskaya | |
| Autor | N. A. Kuznetsova | |
| Autor | V. A. Guschin | |
| Typ | Článek v časopise | |
| Datum | 2021-08 | |
| Abstrakt | Infected SARS-CoV-2 virus occurs not only through contact with an infected person, but also through surfaces with wich the illnes has contacted. The problem of preserving an infectious virus over time capable of infecting remains actual. We evaluated the SARS-CoV-2 viability preservation on different model surfaces over time. Ceramic tiles, metal (aluminum foil), wood (chipboard), plastic and cloth (towel) were used as model materials. Assessment of the presence of SARS-CoV-2 RNA was carried out by quantitative RT-PCR. Viable virus was determined by tissue culture assay on 293T/ACE2 cells. It was found that the SARS-CoV-2 RNA was detected on all studied surfaces for 360 minutes, but a significant decrease RNA by 1 log 10 copies/ml was detected after contact of the virus with cloth (towel). While the viability of the virus was completely lost after 120 minutes. Type of experimental surface significantly affects viability preservation. | |
| Přístup | 15. 10. 2021 16:05:18 | |
| Publikace | Bulletin of Russian State Medical University | |
| Jazyk | English | |
| Číslo | 4 | |
| Rozsah | 16-19 | |
| Extra | Place: Moscow Publisher: Pirogov Russian Natl Research Medical Univ WOS:000693603300003 | |
| ISSN | 2500-1094 | |
| Katalog knihovny | Web of Science Nextgen | |
| Zkrácený název časopisu | Bull. Russ. State Med. Univ. | |
| DOI | 10.24075/brsmu.2021.033 | |
| Select in Zotero | zotero://select/library/items/5I96XNRM | |
| Datum přidání | 15. 10. 2021 16:05:18 | |
| Upraveno | 18. 10. 2021 9:05:29 |
| Autor | Michele Camero | |
|---|---|---|
| Autor | Gianvito Lanave | |
| Autor | Cristiana Catella | |
| Autor | Maria Stella Lucente | |
| Autor | Nicola Decaro | |
| Autor | Vito Martella | |
| Autor | Canio Buonavoglia | |
| Typ | Článek v časopise | |
| Datum | 2021-07-01 | |
| Abstrakt | Severe Acute Respiratory Syndrome Coronavirus type 2 (SARS-CoV-2) is an enveloped RNA virus responsible for the 2019 coronavirus disease (COVID-19) that represents a global health threat, causing an ongoing pandemic in many countries and territories. WHO recommendations emphasize the importance of all personal protective equipment (PPE) that can interrupt COVID-19 transmission. The textile industry and scientists are developing hygienic fabrics by the addition of or treatment with various antimicrobial and antiviral compounds. Methods for determining the antiviral activity of fabrics are reported in the International Standards Organization (ISO) 18184 (2019) guidelines. Three different fabric samples treated with silver derivate, copper derivative and a not treated cotton fabric used as control were examined and put in contact with a suspension of feline coronavirus (FCoV). After 2 h of incubation a significant decrease of viral titer, as high as 3.25 log10 Tissue Culture Infectious Dose (TCID)50/50 μl, in feline cells was observed in treated fabrics, with respect to not treated fabrics. In this study, we optimized laboratory methods to evaluate the virucidal activity of silver- and copper treated cotton- based fabrics against coronavirus, using FCoV suitable as a surrogate of SARS-CoV-2 but safe for laboratory technicians. | |
| Přístup | 12. 7. 2021 10:41:16 | |
| Publikace | Journal of Virological Methods | |
| Jazyk | en | |
| Ročník | 295 | |
| Rozsah | 114214 | |
| ISSN | 0166-0934 | |
| Katalog knihovny | ScienceDirect | |
| Zkrácený název časopisu | Journal of Virological Methods | |
| DOI | 10.1016/j.jviromet.2021.114214 | |
| Select in Zotero | zotero://select/library/items/S8QXSB7I | |
| Datum přidání | 12. 7. 2021 10:41:16 | |
| Upraveno | 12. 7. 2021 12:34:49 |
| Autor | Susan Paton | |
|---|---|---|
| Autor | Antony Spencer | |
| Autor | Isobel Garratt | |
| Autor | Katy-Anne Thompson | |
| Autor | Ikshitaa Dinesh | |
| Autor | Paz Aranega-Bou | |
| Autor | David Stevenson | |
| Autor | Simon Clark | |
| Autor | Jake Dunning | |
| Autor | Allan Bennett | |
| Autor | Thomas Pottage | |
| Typ | Článek v časopise | |
| Datum | 2021-06-25 | |
| Abstrakt | The transmission of SARS-CoV-2 is likely to occur through a number of routes, including contact with contaminated surfaces. Many studies have used reverse transcription-PCR (RT-PCR) analysis to detect SARS-CoV-2 RNA on surfaces, but seldom has viable virus been detected. This paper investigates the viability over time of SARS-CoV-2 dried onto a range of materials and compares viability of the virus to RNA copies recovered and whether virus viability is concentration dependent. Viable virus persisted for the longest time on surgical mask material and stainless steel, with a 99.9% reduction in viability by 122 and 114 h, respectively. Viability of SARS-CoV-2 reduced the fastest on a polyester shirt, with a 99.9% reduction within 2.5 h. Viability on the bank note was reduced second fastest, with 99.9% reduction in 75 h. RNA on all surfaces exhibited a 1-log reduction in genome copy number recovery over 21 days. The findings show that SARS-CoV-2 is most stable on nonporous hydrophobic surfaces. RNA is highly stable when dried on surfaces, with only 1-log reduction in recovery over 3 weeks. In comparison, SARS-CoV-2 viability reduced more rapidly, but this loss in viability was found to be independent of starting concentration. Expected levels of SARS-CoV-2 viable environmental surface contamination would lead to undetectable levels within 2 days. Therefore, when RNA is detected on surfaces, it does not directly indicate the presence of viable virus, even at low cycle threshold values. | |
| Přístup | 12. 7. 2021 10:33:59 | |
| Publikace | Applied and Environmental Microbiology | |
| Ročník | 87 | |
| Číslo | 14 | |
| Rozsah | e00526-21 | |
| Extra | Publisher: American Society for Microbiology | |
| Katalog knihovny | journals.asm.org (Atypon) | |
| DOI | 10.1128/AEM.00526-21 | |
| Select in Zotero | zotero://select/library/items/YQDSUHUM | |
| Datum přidání | 12. 7. 2021 10:33:59 | |
| Upraveno | 12. 7. 2021 12:35:12 |
| Autor | Lucy Owen | |
|---|---|---|
| Autor | Maitreyi Shivkumar | |
| Autor | Katie Laird | |
| Typ | Článek v časopise | |
| Datum | 2021-04-28 | |
| Abstrakt | Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) persists on stainless steel and plastic for up to 7 days, suggesting that coronavirus disease 2019 (COVID-19) could be spread by fomite transmission. There is limited research on the stability of SARS-CoV-2 on textiles, with the risk of textiles acting as fomites not being well understood. To date, there does not appear to be any published research on the stability of coronaviruses during laundering, which is required to determine the efficacy of current laundering policies in the decontamination of health care textiles. The aim of this study was to investigate the environmental stability of human coronaviruses HCoV-OC43 and HCoV-229E on different textile fiber types and the persistence of HCoV-OC43 on textiles during domestic and industrial laundering. This study demonstrated that human coronaviruses (5 log10 50% tissue culture infective doses [TCID50]) remain infectious on polyester for ≥72 h, cotton for ≥24 h, and polycotton for ≥6 h; HCoV-OC43 was also able to transfer from polyester to PVC or polyester after 72 h. Under clean conditions, HCoV-OC43 was not detectable on cotton swatches laundered with industrial and domestic wash cycles without temperature and detergent (≥4.57-log10-TCID50 reduction), suggesting that the dilution and agitation of wash cycles are sufficient to remove human coronaviruses from textiles. In the presence of interfering substances (artificial saliva), ≤1.78 log10 TCID50 HCoV-OC43 was detected after washing domestically without temperature and detergent, unlike industrial laundering, where the virus was completely removed. However, no infectious HCoV-OC43 was detected when washed domestically with detergent. | |
| Přístup | 7. 7. 2021 15:07:13 | |
| Publikace | mSphere | |
| Ročník | 6 | |
| Číslo | 2 | |
| Rozsah | 1-15 | |
| Extra | Publisher: American Society for Microbiology | |
| Katalog knihovny | journals.asm.org (Atypon) | |
| DOI | 10.1128/mSphere.00316-21 | |
| Select in Zotero | zotero://select/library/items/6A27QJWM | |
| Datum přidání | 7. 7. 2021 15:07:13 | |
| Upraveno | 27. 10. 2021 15:20:45 |
Cited By :1
| Autor | Rogério A. Bataglioli | |
|---|---|---|
| Autor | João B. M. R. Neto | |
| Autor | Guilherme B. Calais | |
| Autor | Laise M. Lopes | |
| Autor | Junko Tsukamoto | |
| Autor | Ana P. de Moraes | |
| Autor | Clarice W. Arns | |
| Autor | Marisa M. Beppu | |
| Typ | Článek v časopise | |
| Datum | 2021-04-22 | |
| Abstrakt | The sanitary crisis caused by the SARS-CoV-2 has increased the demand for bioactive materials to mitigate coronavirus spread. The use of masks has been reported as an essential strategy to prevent coronavirus transmission, but masks can become contaminated rapidly after use. Metals species containing compounds, especially those from the copper group, present properties that can be explored to suppress viral activity. Natural polymers, like alginate, can improve biocompatibility and adjust metal ion availability on hybrid coatings. This study assesses iron, copper, silver, and gold salts and their combination with biopolymers to design surfaces with virucidal properties. Viral inactivation assays with MHV-3 coronavirus strain and cytotoxicity tests with L929 cells were conducted to the hybrid coatings on polypropylene masks. These coatings were characterized by scanning electron microscopy with energy dispersive spectroscopy, Fourier-transform infrared spectroscopy with attenuated total reflectance device, and atomic absorption spectroscopy techniques. Multilayer coatings of alginate-copper sulfate presented 99.99% viral inactivation in a timely release of copper ions. | |
| Přístup | 4. 5. 2021 8:57:16 | |
| Publikace | Journal of the American Ceramic Society | |
| Jazyk | en | |
| Ročník | n/a | |
| Číslo | n/a | |
| Rozsah | jace.17862 | |
| Práva | This article is protected by copyright. All rights reserved. | |
| Extra | _eprint: https://ceramics.onlinelibrary.wiley.com/doi/pdf/10.1111/jace.17862 | |
| ISSN | 1551-2916 | |
| Katalog knihovny | Wiley Online Library | |
| Zkrácený název časopisu | Journal of the American Ceramic Society | |
| DOI | 10.1111/jace.17862 | |
| Select in Zotero | zotero://select/library/items/Y7YF5MVY | |
| Datum přidání | 4. 5. 2021 8:57:16 | |
| Upraveno | 12. 7. 2021 12:32:26 |
| Autor | Jenni Virtanen | |
|---|---|---|
| Autor | Kirsi Aaltonen | |
| Autor | Ilkka Kivistö | |
| Autor | Tarja Sironen | |
| Typ | Článek v časopise | |
| Datum | 2021-04-08 | |
| Abstrakt | In order to plan and execute proper preventative measures against COVID-19, we need to understand how SARS-CoV-2 is transmitted. It has been shown to remain infectious on surfaces from hours to days depending on surface type and environmental factors. The possibility of transmission through fur animals and contaminated pelts, along with the safety of those working with them, is a major concern. SARS-CoV-2 can infect minks and raccoon dogs and has spread to mink farms in numerous countries. Here, we studied the stability of SARS-CoV-2 on blue fox, Finn raccoon, and American mink pelt, fake fur, cotton, plastic, faux leather, and polyester and tested its inactivation by UV light and heat treatment. We detected infectious virus up to 5 days on plastic, up to 1 day on fake fur, less than a day on cotton, polyester, and faux leather, and even 10 days on mink fur. UV light failed to inactivate SARS-CoV-2 on pelts, most likely due to the mechanical protection by the fur. Hence, it should not be used to inactivate the virus on fur products, and its use for other surfaces should also be considered carefully. Heat treatment at 60°C for 1 h inactivated the virus on all surfaces and is a promising method to be applied in practice. This study helps prevent further spread of COVID-19 by increasing our understanding about risks of SARS-CoV-2 spread through contaminated clothing materials and giving important information needed to improve safety of those working in the production line as well as people using the products. | |
| Přístup | 13. 4. 2021 8:22:58 | |
| Publikace | Advances in Virology | |
| Jazyk | en | |
| Ročník | 2021 | |
| Rozsah | e6623409 | |
| Extra | Publisher: Hindawi | |
| ISSN | 1687-8639 | |
| Katalog knihovny | www.hindawi.com | |
| DOI | 10.1155/2021/6623409 | |
| Select in Zotero | zotero://select/library/items/CH236ZYT | |
| Datum přidání | 13. 4. 2021 8:22:58 | |
| Upraveno | 14. 4. 2021 8:49:23 |
| Autor | Francesco Petrosino | |
|---|---|---|
| Autor | Debolina Mukherjee | |
| Autor | Gerardo Coppola | |
| Autor | Maria Teresa Gaudio | |
| Autor | Stefano Curcio | |
| Autor | Vincenza Calabro | |
| Autor | Francesco Marra | |
| Autor | Prosun Bhattacharya | |
| Autor | Umapada Pal | |
| Autor | Nabil Khélifi | |
| Autor | Sudip Chakraborty | |
| Typ | Článek v časopise | |
| Datum | 2021-04-07 | |
| Abstrakt | Over the past two decades, several deadly viral epidemics have emerged, which have placed humanity in danger. Previous investigations have suggested that viral diseases can spread through contaminants or contaminated surfaces. The transmission of viruses via polluted surfaces relies upon their capacity to maintain their infectivity while they are in the environment. Here, a range of materials that are widely used to manufacture personal protective equipment (PPE) are summarized, as these offer effective disinfection solutions and are the environmental variables that influence virus survival. Infection modes and prevention as well as disinfection and PPE disposal strategies are discussed. A coronavirus-like enveloped virus can live in the environment after being discharged from a host organism until it infects another healthy individual. Transmission of enveloped viruses such as SARS-CoV-2 can occur even without direct contact, although detailed knowledge of airborne routes and other indirect transmission paths is still lacking. Ground transmission of viruses is also possible via wastewater discharges. While enveloped viruses can contaminate potable water and wastewater through human excretions such as feces and droplets, careless PPE disposal can also lead to their transmission into our environment. This paper also highlights the possibility that viruses can be transmitted into the environment from PPE kits used by healthcare and emergency service personnel. A simulation-based approach was developed to understand the transport mechanism for coronavirus and similar enveloped viruses in the environment through porous media, and preliminary results from this model are presented here. Those results indicate that viruses can move through porous soil and eventually contaminate groundwater. This paper therefore underlines the importance of proper PPE disposal by healthcare workers in the Mediterranean region and around the world. | |
| Přístup | 13. 4. 2021 14:05:38 | |
| Publikace | Euro-Mediterranean Journal for Environmental Integration | |
| Krátký název | Transmission of SARS-Cov-2 and other enveloped viruses to the environment through protective gear | |
| Jazyk | en | |
| Ročník | 6 | |
| Číslo | 2 | |
| Rozsah | 48 | |
| ISSN | 2365-7448 | |
| Katalog knihovny | Springer Link | |
| Zkrácený název časopisu | Euro-Mediterr J Environ Integr | |
| DOI | 10.1007/s41207-021-00251-w | |
| Select in Zotero | zotero://select/library/items/STXLMQBR | |
| Datum přidání | 13. 4. 2021 14:05:38 | |
| Upraveno | 14. 4. 2021 8:49:39 |
| Autor | Filippo Marzoli | |
|---|---|---|
| Autor | Alessio Bortolami | |
| Autor | Alessandra Pezzuto | |
| Autor | Eva Mazzetto | |
| Autor | Roberto Piro | |
| Autor | Calogero Terregino | |
| Autor | Francesco Bonfante | |
| Autor | Simone Belluco | |
| Typ | Článek v časopise | |
| Datum | 2021-03-26 | |
| Abstrakt | The current pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has led people to implement preventive measures, including surface disinfection and use of alcohol-based hand gel, in order to avoid viral transmission via fomites. However, the role of surface transmission is still debated. The present systematic review aims to summarize all the evidence on surface survival of coronaviruses infecting humans. The analysis of 18 studies showed the longest coronavirus survival time is 28 days at room temperature (RT) on different surfaces: polymer banknotes, vinyl, steel, glass, and paper banknotes. Concerning SARS-CoV-2 human infection from contaminated surfaces, dangerous viral load on surfaces for up to 21 days was determined on polymer banknotes, steel, glass and paper banknotes. For viruses other than SARS-CoV-2, the longest period of survival was 14 days, recorded on glass. Environmental conditions can affect virus survival, and indeed, low temperatures and low humidity support prolonged survival of viruses on contaminated surfaces independently of surface type. Furthermore, it has been shown that exposure to sunlight significantly reduces the risk of surface transmission. Although studies are increasingly investigating the topic of coronavirus survival, it is difficult to compare them, given the methodology differences. For this reason, it is advisable to define a reference working protocol for virus survival trials, but, as an immediate measure, there is also a need for further investigations of coronavirus survival on surfaces. | |
| Přístup | 26. 3. 2021 9:51:10 | |
| Publikace | Science of The Total Environment | |
| Jazyk | en | |
| Ročník | 778 | |
| Rozsah | 146191 | |
| ISSN | 0048-9697 | |
| Katalog knihovny | ScienceDirect | |
| Zkrácený název časopisu | Science of The Total Environment | |
| DOI | 10.1016/j.scitotenv.2021.146191 | |
| Select in Zotero | zotero://select/library/items/D9TZDRP3 | |
| Datum přidání | 26. 3. 2021 9:51:10 | |
| Upraveno | 26. 3. 2021 13:46:08 |
| Autor | Lucy Owen | |
|---|---|---|
| Autor | Maitreyi Shivkumar | |
| Autor | Katie Laird | |
| Typ | Článek v časopise | |
| Datum | 2021-03-23 | |
| Abstrakt | Aims The aim of this investigation was to determine the persistence of human coronaviruses on a range of textiles both in the environment and during laundering. Methods and Results The stability of human coronaviruses HCoV-OC43 and HCoV-229E on cotton, polycotton and polyester textiles was determined up to 72 hours. The transfer of HCoV-OC43 from textiles to plastic or another textile was quantified. Persistence of HCoV-OC43 on cotton during domestic and industrial laundering was also investigated in the presence and absence of detergents and temperature (40-75°C). Infectious virus was quantified by titration on mammalian cells. Infectious HCoV-OC43 was detectable for 6 hours on polycotton, 24 hours on cotton and ≥72 hours on polyester. HCoV-229E was less stable, where it was detectable for 2 hours on polycotton, 6 hours on cotton and 24 hours on polyester. HCoV-OC43 transferred from polyester to PVC and polyester up to 72 hours post-inoculation, whereas no transfer was detected from cotton or polycotton. Domestic and industrial laundering without temperature and detergent completely removed HCoV-OC43 from cotton (≥ 4.58 log10 reduction) under clean conditions. Under dirty conditions, HCoV-OC43 was detected on cotton (≤1.78 log10) after domestic laundering without temperature and detergent. However, HCoV-OC43 was removed by domestic laundering with temperature (40°C) and detergent, or industrial laundering without temperature and detergent. Conclusions Human coronaviruses can persist on textiles for up to 3 days and readily transfer from polyester to other surfaces. HCoV-OC43 were removed from cotton during both domestic and industrial laundering. Significance of Study Polyester could potentially act as fomites for the transmission of coronaviruses, demonstrating the importance of infection control procedures for handling of contaminated textiles. Human coronaviruses are removed from textiles during common domestic and industrial wash programmes, indicating that typical healthcare washing procedures are likely to be suitable for decontaminating textiles. | |
| Přístup | 12. 4. 2021 9:08:01 | |
| URL | https://dora.dmu.ac.uk/handle/2086/20672 | |
| Jazyk | en | |
| Extra | Accepted: 2021-03-04T09:09:53Z | |
| Katalog knihovny | dora.dmu.ac.uk | |
| Select in Zotero | zotero://select/library/items/R74LUPVL | |
| Datum přidání | 12. 4. 2021 9:08:01 | |
| Upraveno | 12. 7. 2021 12:33:56 |
| Autor | Nicolas Castaño | |
|---|---|---|
| Autor | Seth C. Cordts | |
| Autor | Myra Kurosu Jalil | |
| Autor | Kevin S. Zhang | |
| Autor | Saisneha Koppaka | |
| Autor | Alison D. Bick | |
| Autor | Rajorshi Paul | |
| Autor | Sindy K. Y. Tang | |
| Typ | Článek v časopise | |
| Datum | 2021-03-16 | |
| Abstrakt | Inanimate objects or surfaces contaminated with infectious agents, referred to as fomites, play an important role in the spread of viruses, including SARS-CoV-2, the virus responsible for the COVID-19 pandemic. The long persistence of viruses (hours to days) on surfaces calls for an urgent need for effective surface disinfection strategies to intercept virus transmission and the spread of diseases. Elucidating the physicochemical processes and surface science underlying the adsorption and transfer of virus between surfaces, as well as their inactivation, is important for understanding how diseases are transmitted and for developing effective intervention strategies. This review summarizes the current knowledge and underlying physicochemical processes of virus transmission, in particular via fomites, and common disinfection approaches. Gaps in knowledge and the areas in need of further research are also identified. The review focuses on SARS-CoV-2, but discussion of related viruses is included to provide a more comprehensive review given that much remains unknown about SARS-CoV-2. Our aim is that this review will provide a broad survey of the issues involved in fomite transmission and intervention to a wide range of readers to better enable them to take on the open research challenges. | |
| Přístup | 26. 3. 2021 10:13:34 | |
| Publikace | ACS Omega | |
| Ročník | 6 | |
| Číslo | 10 | |
| Rozsah | 6509-6527 | |
| Extra | Publisher: American Chemical Society | |
| ISSN | 2470-1343 | |
| Katalog knihovny | ACS Publications | |
| Zkrácený název časopisu | ACS Omega | |
| DOI | 10.1021/acsomega.0c06335 | |
| Select in Zotero | zotero://select/library/items/7KQQN9XG | |
| Datum přidání | 26. 3. 2021 10:13:34 | |
| Upraveno | 26. 3. 2021 10:13:47 |
| Autor | Susan Paton | |
|---|---|---|
| Autor | Antony Spencer | |
| Autor | Isobel Garratt | |
| Autor | Katy-Anne Thompson | |
| Autor | Ikshitaa Dinesh | |
| Autor | Paz Aranega-Bou | |
| Autor | David Stevenson | |
| Autor | Simon Clark | |
| Autor | Jake Dunning | |
| Autor | Allan Bennett | |
| Autor | Thomas Pottage | |
| Typ | Článek v časopise | |
| Datum | 2021-03-13 | |
| Abstrakt | Abstract The transmission of SARS-CoV-2 is likely to occur through a number of routes, including contact with contaminated surfaces. Many studies have used RT-PCR analysis to detect SARS-CoV-2 RNA on surfaces but seldom has viable virus been detected. This paper investigates the viability over time of SARS-CoV-2 dried onto a range of materials and compares viability of the virus to RNA copies recovered, and whether virus viability is concentration dependant. Viable virus persisted for the longest time on surgical mask material and stainless steel with a 99.9% reduction in viability by 124 and 113 hours respectively. Viability of SARS-CoV-2 reduced the fastest on a polyester shirt, with a 99.9% reduction within 2.5 hours. Viability on cotton was reduced second fastest, with 99.9% reduction in 72 hours. RNA on all the surfaces exhibited a one log reduction in genome copy recovery over 21 days. The findings show that SARS-CoV-2 is most stable on non-porous hydrophobic surfaces. RNA is highly stable when dried on surfaces with only one log reduction in recovery over three weeks. In comparison, SARS-CoV-2 viability reduced more rapidly, but this loss in viability was found to be independent of starting concentration. Expected levels of SARS-CoV-2 viable environmental surface contamination would lead to undetectable levels within two days. Therefore, when RNA is detected on surfaces it does not directly indicate presence of viable virus even at high CT values. Importance This study shows the impact of material type on the viability of SARS-CoV-2 on surfaces. It demonstrates that the decay rate of viable SARS-CoV-2 is independent of starting concentration. However, RNA shows high stability on surfaces over extended periods. This has implications for interpretation of surface sampling results using RT-PCR to determine the possibility of viable virus from a surface. Unless sampled immediately after contamination it is difficult to align RNA copy numbers to quantity of viable virus on a surface. | |
| Přístup | 12. 7. 2021 10:40:39 | |
| Publikace | bioRxiv | |
| Jazyk | en | |
| Rozsah | 2021.03.11.435056 | |
| Práva | © 2021, Posted by Cold Spring Harbor Laboratory. This pre-print is available under a Creative Commons License (Attribution-NonCommercial-NoDerivs 4.0 International), CC BY-NC-ND 4.0, as described at http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| Extra | Publisher: Cold Spring Harbor Laboratory Section: New Results | |
| Katalog knihovny | www.biorxiv.org | |
| DOI | 10.1101/2021.03.11.435056 | |
| Select in Zotero | zotero://select/library/items/PGHF88GK | |
| Datum přidání | 12. 7. 2021 10:40:39 | |
| Upraveno | 12. 7. 2021 12:35:00 |
| Autor | Anna Gidari | |
|---|---|---|
| Autor | Samuele Sabbatini | |
| Autor | Sabrina Bastianelli | |
| Autor | Sara Pierucci | |
| Autor | Chiara Busti | |
| Autor | Desirée Bartolini | |
| Autor | Anna Maria Stabile | |
| Autor | Claudia Monari | |
| Autor | Francesco Galli | |
| Autor | Mario Rende | |
| Autor | Gabriele Cruciani | |
| Autor | Daniela Francisci | |
| Typ | Článek v časopise | |
| Datum | 2021-03-05 | |
| Abstrakt | The aim of this study was to establish the persistence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on inanimate surfaces such as plastic, stainless steel, and glass during UV-C irradiation which is a physical means commonly utilized in sanitization procedures. The viral inactivation rate, virus half-life, and percentage of titer reduction after UV-C irradiation were assessed. Infectivity was maintained on plastic and glass until 120 h and on stainless steel until 72 h. The virus half-life was 5.3, 4.4, and 4.2 h on plastic, stainless steel, and glass, respectively. In all cases, titer decay was >99% after drop drying. UV-C irradiation efficiently reduced virus titer (99.99%), with doses ranging from 10.25 to 23.71 mJ/cm2. Plastic and stainless steel needed higher doses to achieve target reduction. The total inactivation of SARS-CoV-2 on glass was obtained with the lower dose applied. SARS-CoV-2 survival can be long lasting on inanimate surfaces. It is worth recommending efficient disinfection protocols as a measure of prevention of viral spread. UV-C can provide rapid, efficient and sustainable sanitization procedures of different materials and surfaces. The dosages and mode of irradiation are important parameters to consider in their implementation as an important means to fight the SARS-CoV-2 pandemic. | |
| Přístup | 15. 10. 2021 16:28:20 | |
| Publikace | Viruses | |
| Jazyk | en | |
| Ročník | 13 | |
| Číslo | 3 | |
| Rozsah | 408 | |
| Práva | http://creativecommons.org/licenses/by/3.0/ | |
| Extra | Number: 3 Publisher: Multidisciplinary Digital Publishing Institute | |
| Katalog knihovny | www.mdpi.com | |
| DOI | 10.3390/v13030408 | |
| Select in Zotero | zotero://select/library/items/TGH4NAQ4 | |
| Datum přidání | 15. 10. 2021 16:28:20 | |
| Upraveno | 18. 10. 2021 9:06:48 |
| Autor | Maria A. Nikiforova | |
|---|---|---|
| Autor | Andrei E. Siniavin | |
| Autor | Elena V. Shidlovskaya | |
| Autor | Nadezhda A. Kuznetsova | |
| Autor | Vladimir A. Gushchin | |
| Typ | Článek v časopise | |
| Datum | 2021-03-04 | |
| Abstrakt | We evaluated the SARS-CoV-2 viability preservation on different model surfaces over time. It was found that the SARS-CoV-2 RNA was detected on all studied surfaces for 360 minutes, while the viability of the virus was completely lost after 120 minutes. Type of experimental surface significantly affects viability preservation. | |
| Přístup | 12. 7. 2021 10:44:05 | |
| Publikace | bioRxiv | |
| Jazyk | en | |
| Rozsah | 2021.03.04.433846 | |
| Práva | © 2021, Posted by Cold Spring Harbor Laboratory. The copyright holder for this pre-print is the author. All rights reserved. The material may not be redistributed, re-used or adapted without the author's permission. | |
| Extra | Publisher: Cold Spring Harbor Laboratory Section: New Results | |
| Katalog knihovny | www.biorxiv.org | |
| DOI | 10.1101/2021.03.04.433846 | |
| Select in Zotero | zotero://select/library/items/SLGPRYKW | |
| Datum přidání | 12. 7. 2021 10:44:05 | |
| Upraveno | 12. 7. 2021 12:34:41 |
| Autor | Shannon E. Ronca | |
|---|---|---|
| Autor | Rodney X. Sturdivant | |
| Autor | Kelli L. Barr | |
| Autor | Debra Harris | |
| Typ | Článek v časopise | |
| Datum | 2021-02-23 | |
| Abstrakt | Aim:This study investigated the stability of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on 16 common environmental surface materials.Background:SARS-CoV-2 is the causative agent of severe coronavirus disease, a significant public health concern that quickly led to a pandemic. Contamination of environmental surface materials is of concern, with previous studies identifying long-term detection of infectious particles on surfaces. These contaminated surfaces create an increased risk for contact transmission.Methods:Surface materials were inoculated with 10,000 plaque forming units and samples were collected 4, 8, 12, 24, 30, 48, and 168 hours post infection (hpi). Viral titers were determined for each sample and time point using plaque assays. Nonparametric modeling utilized the Turnbull algorithm for interval-censored data. Maximum likelihood estimates for the survival curve were calculated. Parametric proportional hazards regression models for interval censored data were used to explore survival time across the surface materials.Results:There was a sharp decline in recoverable virus after 4 hpi for all tested surfaces. By 12 hpi, infectious SARS-CoV-2 was recoverable from only four surfaces; and by 30 hr, the virus was recoverable from only one surface. There were differences in survival curves based on the materials although some groups of materials are similar, both statistically and practically.Conclusions:While very low amounts of infectious SARS-CoV-2 are recoverable over time, there remains a risk of viral transmission by surface contamination in indoor environments. Individuals and institutions must follow appropriate procedures to decontaminate indoor environment and increase diligence for hand hygiene and personal protective equipment. | |
| Přístup | 5. 3. 2021 8:36:57 | |
| Publikace | HERD: Health Environments Research & Design Journal | |
| Jazyk | en | |
| Rozsah | 1937586721991535 | |
| Extra | Publisher: SAGE Publications Inc | |
| ISSN | 1937-5867 | |
| Katalog knihovny | SAGE Journals | |
| Zkrácený název časopisu | HERD | |
| DOI | 10.1177/1937586721991535 | |
| Select in Zotero | zotero://select/library/items/6NLJFBH6 | |
| Datum přidání | 5. 3. 2021 8:36:57 | |
| Upraveno | 5. 3. 2021 12:20:38 |
| Autor | Thomas Edwards | |
|---|---|---|
| Autor | Grant A. Kay | |
| Autor | Ghaith Aljayyoussi | |
| Autor | Sophie I. Owen | |
| Autor | Andy R. Harland | |
| Autor | Nicholas S. Pierce | |
| Autor | James D. F. Calder | |
| Autor | Tom E. Fletcher | |
| Autor | Emily R. Adams | |
| Typ | Článek v časopise | |
| Datum | 2021-02-08 | |
| Abstrakt | OBJECTIVES: To investigate the potential of shared sporting equipment as transmission vectors of SARS-CoV-2 during the reintroduction of sports such as soccer, rugby, cricket, tennis, golf and gymnastics. SETTING: Laboratory based live SARS-CoV-2 virus study. INTERVENTIONS: Ten different types of sporting equipment were inoculated with 40μl droplets containing clinically relevant high and low concentrations of live SARS-CoV-2 virus. Materials were then swabbed at time points relevant to sports (1, 5, 15, 30, 90 minutes). The amount of live SARS-CoV-2 recovered at each time point was enumerated using viral plaque assays, and viral decay and half-life was estimated through fitting linear models to log transformed data from each material. MAIN OUTCOME MEASURE: The primary outcome measure was quantification of retrievable SARS-CoV-2 virus from each piece of equipment at pre-determined time points. RESULTS: At one minute, SARS-CoV-2 virus was recovered in only seven of the ten types of equipment with the low dose inoculum, one at five minutes and none at 15 minutes. Retrievable virus dropped significantly for all materials tested using the high dose inoculum with mean recovery of virus falling to 0.74% at 1 minute, 0.39% at 15 minutes and 0.003% at 90 minutes. Viral recovery, predicted decay, and half-life varied between materials with porous surfaces limiting virus transmission. CONCLUSIONS: This study shows that there is an exponential reduction in SARS-CoV-2 recoverable from a range of sports equipment after a short time period, and virus is less transferrable from materials such as a tennis ball, red cricket ball and cricket glove. Given this rapid loss of viral load and the fact that transmission requires a significant inoculum to be transferred from equipment to the mucous membranes of another individual it seems unlikely that sports equipment is a major cause for transmission of SARS-CoV-2. These findings have important policy implications in the context of the pandemic and may promote other infection control measures in sports to reduce the risk of SARS-CoV-2 transmission and urge sports equipment manufacturers to identify surfaces that may or may not be likely to retain transferable virus. | |
| Přístup | 5. 3. 2021 9:30:41 | |
| Publikace | medRxiv | |
| Jazyk | en | |
| Rozsah | 2021.02.04.21251127 | |
| Práva | © 2021, Posted by Cold Spring Harbor Laboratory. This pre-print is available under a Creative Commons License (Attribution 4.0 International), CC BY 4.0, as described at http://creativecommons.org/licenses/by/4.0/ | |
| Extra | Publisher: Cold Spring Harbor Laboratory Press | |
| Katalog knihovny | www.medrxiv.org | |
| DOI | 10.1101/2021.02.04.21251127 | |
| Select in Zotero | zotero://select/library/items/SABX4VUH | |
| Datum přidání | 5. 3. 2021 9:30:41 | |
| Upraveno | 5. 3. 2021 12:20:12 |
| Autor | Andrew D. Haddow | |
|---|---|---|
| Autor | Taylor R. Watt | |
| Autor | Holly A. Bloomfield | |
| Autor | David P. Fetterer | |
| Autor | David E. Harbourt | |
| Typ | Článek v časopise | |
| Datum | 2021-02-03 | |
| Abstrakt | We modeled the stability of SARS-CoV-2 on personal protective equipment (PPE) commonly worn in hospitals when carrying out high-risk airway procedures. Evaluated PPE included the visors and hoods of two brands of commercially available powered air purifying respirators, a disposable face shield, and Tyvek coveralls. Following an exposure to 4.3 log10 plaque-forming units (PFUs) of SARS-CoV-2, all materials displayed a reduction in titer of > 4.2 log10 by 72 hours postexposure, with detectable titers at 72 hours varying by material (1.1–2.3 log10 PFU/mL). Our results highlight the need for proper doffing and disinfection of PPE, or disposal, to reduce the risk of SARS-CoV-2 contact or fomite transmission. | |
| Přístup | 13. 4. 2021 13:47:23 | |
| Publikace | The American Journal of Tropical Medicine and Hygiene | |
| Jazyk | EN | |
| Ročník | 104 | |
| Číslo | 2 | |
| Rozsah | 549-551 | |
| Extra | Publisher: The American Society of Tropical Medicine and Hygiene Section: The American Journal of Tropical Medicine and Hygiene | |
| ISSN | 1476-1645 | |
| Katalog knihovny | www.ajtmh.org | |
| DOI | 10.4269/ajtmh.20-1508 | |
| Select in Zotero | zotero://select/library/items/ATCSCTD2 | |
| Datum přidání | 15. 1. 2021 17:07:45 | |
| Upraveno | 14. 4. 2021 8:50:18 |
| Autor | Gadi Borkow | |
|---|---|---|
| Autor | Rachel Salvatori | |
| Autor | Vikram K. Kanmukhla | |
| Typ | Článek v časopise | |
| Datum | 2021-02-01 | |
| Abstrakt | Hospital patients and personnel are at risk of nosocomial viral infections, as clearly manifested during the COVID-19 pandemic. Transmission of respiratory viral pathogens can occur through contaminated surfaces, including from medical textiles. Copper has potent biocidal properties, and cuprous oxide impregnated medical textiles (CMT) reduce hospital-acquired bacterial infections. In the current study we confirm the antimicrobial properties of CMT and determine their capacity to reduce infectious titres of human coronavirus (HCoV-229E) in an independent laboratory. The antibacterial and antiviral activities of the CMT were determined according to AATCC TM100-2019 and ISO 18184:2019 standards, respectively. The CMT reduced by 4 logs the viable titers of MRSA, Klebsiella pneumoniae, Enterococcus faecalis, and Candida auris after 2 h of incubation. Viable titers of Clostridium difficile were reduced by 2.3, 3, and 4 logs after 2, 6, and 18 h, respectively. Infectious titers of HCoV-229E exposed to CMT for 2 h were reduced by 2.8 and 4 logs (99.85% and 99.99% reductions) as compared to Time-0 control and initial inoculum, respectively. The CMT retain their antibacterial efficacy even after 100 industrial washings. Use of cuprous oxide impregnated textiles in clinical settings may reduce not only hospital acquired infections caused by bacterial and fungal pathogens, but also, and equally important, those caused by coronavirus and other viruses. | |
| Přístup | 10. 2. 2021 16:39:41 | |
| Publikace | Journal of Functional Biomaterials | |
| Jazyk | en | |
| Ročník | 12 | |
| Číslo | 1 | |
| Rozsah | 9 | |
| Práva | http://creativecommons.org/licenses/by/3.0/ | |
| Extra | Number: 1 Publisher: Multidisciplinary Digital Publishing Institute | |
| Katalog knihovny | www.mdpi.com | |
| DOI | 10.3390/jfb12010009 | |
| Select in Zotero | zotero://select/library/items/FAXSR2LE | |
| Datum přidání | 10. 2. 2021 16:39:41 | |
| Upraveno | 5. 3. 2021 12:19:05 |
| Autor | Sanghamitro Chatterjee | |
|---|---|---|
| Autor | Janani Srree Murallidharan | |
| Autor | Amit Agrawal | |
| Autor | Rajneesh Bhardwaj | |
| Typ | Článek v časopise | |
| Datum | 2021-02-01 | |
| Abstrakt | Previous studies reported that the drying time of a respiratory droplet on an impermeable surface along with a residual film left on it is correlated with the coronavirus survival time. Notably, earlier virus titer measurements revealed that the survival time is surprisingly less on porous surfaces such as paper and cloth than that on impermeable surfaces. Previous studies could not capture this distinct aspect of the porous media. We demonstrate how the mass loss of a respiratory droplet and the evaporation mechanism of a thin liquid film are modified for the porous media, which leads to a faster decay of the coronavirus on such media. While diffusion-limited evaporation governs the mass loss from the bulk droplet for the impermeable surface, a much faster capillary imbibition process dominates the mass loss for the porous material. After the bulk droplet vanishes, a thin liquid film remaining on the exposed solid area serves as a medium for the virus survival. However, the thin film evaporates much faster on porous surfaces than on impermeable surfaces. The aforesaid faster film evaporation is attributed to droplet spreading due to the capillary action between the contact line and fibers present on the porous surface and the modified effective wetted area due to the voids of porous materials, which leads to an enhanced disjoining pressure within the film, thereby accelerating the film evaporation. Therefore, the porous materials are less susceptible to virus survival. The findings have been compared with the previous virus titer measurements. | |
| Přístup | 5. 3. 2021 9:18:39 | |
| Publikace | Physics of Fluids | |
| Ročník | 33 | |
| Číslo | 2 | |
| Rozsah | 021701 | |
| Extra | Publisher: American Institute of Physics | |
| ISSN | 1070-6631 | |
| Katalog knihovny | aip.scitation.org (Atypon) | |
| Zkrácený název časopisu | Physics of Fluids | |
| DOI | 10.1063/5.0037924 | |
| Select in Zotero | zotero://select/library/items/AYZ5IT9G | |
| Datum přidání | 5. 3. 2021 9:18:39 | |
| Upraveno | 5. 3. 2021 12:22:12 |
| Autor | Montse Marquès | |
|---|---|---|
| Autor | José L. Domingo | |
| Typ | Článek v časopise | |
| Datum | 2021-02-01 | |
| Abstrakt | Undoubtedly, there is a tremendous concern regarding the new viral strain "Severe Acute Respiratory Syndrome Coronavirus-2" (SARS-CoV-2) and its related disease known as COVID-19. The World Health Organization has stated that SARS-CoV-2 is mainly transmitted from person-to-person close contact, as well as by small aerosol respiratory droplets. Moreover, the results of some recent studies about the role of air pollution on the spread and lethality of the novel coronavirus suggest that air contaminants could be also a transmission pathway of the virus. On the other hand, indirect transmission of the virus cannot be discarded. Among many sources of indirect transmission, there is the contamination of inert/inanimate surfaces. This manuscript was aimed at reviewing the scientific literature currently available in PubMed and Scopus. The results of the reviewed studies point out that SARS-CoV-2 can last on different surfaces from hours to a few days. However, rapid SARS-CoV-2 inactivation is possible by applying commonly available chemicals and biocides on inanimate surfaces. Consequently, although the presence of SARS-CoV-2 on inanimate surfaces can represent a potential route of transmission, appropriate disinfection measures should reduce the possibilities of coronavirus transmission, and hence, significantly decrease the risks of COVID-19. | |
| Přístup | 13. 4. 2021 13:46:14 | |
| Publikace | Environmental Research | |
| Krátký název | Contamination of inert surfaces by SARS-CoV-2 | |
| Jazyk | en | |
| Ročník | 193 | |
| Rozsah | 110559 | |
| ISSN | 0013-9351 | |
| Katalog knihovny | ScienceDirect | |
| Zkrácený název časopisu | Environmental Research | |
| DOI | 10.1016/j.envres.2020.110559 | |
| Select in Zotero | zotero://select/library/items/PA5G5YQ9 | |
| Datum přidání | 13. 4. 2021 13:46:14 | |
| Upraveno | 14. 4. 2021 8:50:42 |
| Autor | Jan Erik Wißmann | |
|---|---|---|
| Autor | Lisa Kirchhoff | |
| Autor | Yannick Brüggemann | |
| Autor | Daniel Todt | |
| Autor | Joerg Steinmann | |
| Autor | Eike Steinmann | |
| Typ | Článek v časopise | |
| Datum | 2021-02 | |
| Abstrakt | For the prevention of infectious diseases, knowledge about transmission routes is essential. In addition to respiratory, fecal–oral, and sexual transmission, the transfer of pathogens via surfaces plays a vital role for human pathogenic infections—especially nosocomial pathogens. Therefore, information about the survival of pathogens on surfaces can have direct implications on clinical measures, including hygiene guidelines and disinfection strategies. In this review, we reviewed the existing literature regarding viral, bacterial, and fungal persistence on inanimate surfaces. In particular, the current knowledge of the survival time and conditions of clinically relevant pathogens is summarized. While many pathogens persist only for hours, common nosocomial pathogens can survive for days to weeks under laboratory conditions and thereby potentially form a continuous source of transmission if no adequate inactivation procedures are performed. | |
| Přístup | 5. 3. 2021 9:12:56 | |
| Publikace | Microorganisms | |
| Krátký název | Persistence of Pathogens on Inanimate Surfaces | |
| Jazyk | en | |
| Ročník | 9 | |
| Číslo | 2 | |
| Rozsah | 343 | |
| Práva | http://creativecommons.org/licenses/by/3.0/ | |
| Extra | Number: 2 Publisher: Multidisciplinary Digital Publishing Institute | |
| Katalog knihovny | www.mdpi.com | |
| DOI | 10.3390/microorganisms9020343 | |
| Select in Zotero | zotero://select/library/items/4QNEQXNE | |
| Datum přidání | 5. 3. 2021 9:12:56 | |
| Upraveno | 5. 3. 2021 12:19:59 |
| Autor | Dyani Lewis | |
|---|---|---|
| Typ | Článek v časopise | |
| Datum | 2021-01-29 | |
| Abstrakt | The coronavirus behind the pandemic can linger on doorknobs and other surfaces, but these aren’t a major source of infection. | |
| Přístup | 5. 3. 2021 9:36:58 | |
| Publikace | Nature | |
| Jazyk | en | |
| Ročník | 590 | |
| Číslo | 7844 | |
| Rozsah | 26-28 | |
| Práva | 2021 Nature | |
| Extra | Number: 7844 Publisher: Nature Publishing Group | |
| Katalog knihovny | www.nature.com | |
| DOI | 10.1038/d41586-021-00251-4 | |
| Select in Zotero | zotero://select/library/items/AG8B2224 | |
| Datum přidání | 5. 3. 2021 9:36:58 | |
| Upraveno | 5. 3. 2021 12:17:41 |
| Autor | E. Percivalle | |
|---|---|---|
| Autor | M. Clerici | |
| Autor | I. Cassaniti | |
| Autor | E. Vecchio Nepita | |
| Autor | P. Marchese | |
| Autor | D. Olivati | |
| Autor | C. Catelli | |
| Autor | A. Berri | |
| Autor | F. Baldanti | |
| Autor | P. Marone | |
| Autor | R. Bruno | |
| Autor | A. Triarico | |
| Autor | P. Lago | |
| Typ | Článek v časopise | |
| Datum | 2021-01-28 | |
| Abstrakt | COVID-19 is a global health threat with a huge number of confirmed cases and deaths all over the world. Human-to-human transmission via respiratory droplets and contact with aerosol-infected surfaces are the major routes of virus spread. Because SARS-CoV-2 can remain in the air and on surfaces from several hours to several days, disinfection of frequently touched surfaces and critical rooms, in addition to observing individual hygiene tips, is required to reduce the virus spreading. Here we report on an investigation into the use of gaseous ozone as a potentially effective sanitizing method against the new coronavirus. | |
| Přístup | 10. 2. 2021 16:42:07 | |
| Publikace | Journal of Hospital Infection | |
| Krátký název | SARS-CoV-2 viability on different surfaces after gaseous ozone treatment | |
| Jazyk | en | |
| ISSN | 0195-6701 | |
| Katalog knihovny | ScienceDirect | |
| Zkrácený název časopisu | Journal of Hospital Infection | |
| DOI | 10.1016/j.jhin.2021.01.014 | |
| Select in Zotero | zotero://select/library/items/TSHF9UH6 | |
| Datum přidání | 10. 2. 2021 16:42:07 | |
| Upraveno | 5. 3. 2021 12:20:50 |
| Autor | Samantha B Kasloff | |
|---|---|---|
| Autor | Anders Leung | |
| Autor | James E Strong | |
| Autor | Duane Funk | |
| Autor | Todd Cutts | |
| Typ | Článek v časopise | |
| Datum | 2021-01-15 | |
| Abstrakt | The spread of COVID-19 in healthcare settings is concerning, with healthcare workers representing a disproportionately high percentage of confirmed cases. Although SARS-CoV-2 virus has been found to persist on surfaces for a number of days, the extent and duration of fomites as a mode of transmission, particularly in healthcare settings, has not been fully characterized. To shed light on this critical matter, the present study provides the first comprehensive assessment of SARS-CoV-2 stability on experimentally contaminated personal protective equipment (PPE) widely used by healthcare workers and the general public. Persistence of viable virus was monitored over 21 days on eight different materials, including nitrile medical examination gloves, reinforced chemical resistant gloves, N-95 and N-100 particulate respirator masks, Tyvek, plastic, cotton, and stainless steel. Unlike previous reports, viable SARS-CoV-2 in the presence of a soil load persisted for up to 21 days on experimentally inoculated PPE, including materials from filtering facepiece respirators (N-95 and N-100 masks) and a plastic visor. Conversely, when applied to 100% cotton fabric, the virus underwent rapid degradation and became undetectable by TCID50 assay within 24 h. These findings underline the importance of appropriate handling of contaminated PPE during and following use in high-risk settings and provide interesting insight into the potential utility of cotton in limiting COVID-19 transmission. | |
| Publikace | Scientific Reports (Nature Publisher Group) | |
| Jazyk | English | |
| Ročník | 11 | |
| Číslo | 1 | |
| Archiv | Coronavirus Research Database; ProQuest Central | |
| Místo v archivu | 2477376706 | |
| Extra | Place: London Publisher: Nature Publishing Group | |
| DOI | 10.1038/s41598-020-80098-3 | |
| Select in Zotero | zotero://select/library/items/IND5NH4S | |
| Datum přidání | 15. 1. 2021 16:14:59 | |
| Upraveno | 5. 3. 2021 12:21:21 |
Copyright - © The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.
Poslední aktualizace - 2021-01-14
| Autor | S. Hu | |
|---|---|---|
| Autor | D. Wang | |
| Autor | K. Yang | |
| Autor | Y. F. Wang | |
| Autor | T. Yang | |
| Autor | Q. Y. Peng | |
| Autor | X. D. Tan | |
| Autor | D. Kremenakova | |
| Autor | J. Militky | |
| Autor | M. Venkataraman | |
| Autor | A. P. Periyasamy | |
| Typ | Článek v časopise | |
| Datum | 2020-11-24 | |
| Abstrakt | COVID-19 is a pandemic, as such developing a type of material that can inhibit the spread of the novel coronavirus is vital In this article, copper as metallization material for textiles is discussed for developing disinfection mouth masks or other protective textiles Copper has been proved to have significant effect against certain bacteria or virus according to several research For example the Human-Coronavirus 229E virus survive time on copper alloy demonstrates the antivirus property of cooper The mechanism, such as Cu(I) and Cu (II) enhanced by reactive oxygen species generation on alloy surfaces and other theories is discussed The metallization method for textile includes the dry process and wet process However, to develop safe and effective cooper-coated material to inhibit COVID-19 virus requires further research © Textile Bioengineering and Informatics Symposium Proceedings 2020 - 13th Textile Bioengineering and Informatics Symposium, TBIS 2020 | |
| Přístup | 24. 11. 2020 13:24:16 | |
| URL | https://search.bvsalud.org/global-literature-on-novel-coronavirus-2019-ncov/resource/en/covidwho-908473 | |
| Publikace | 13th Textile Bioengineering and Informatics Symposium, TBIS 2020 | |
| Jazyk | en | |
| Rozsah | 84-91 | |
| Katalog knihovny | search.bvsalud.org | |
| Select in Zotero | zotero://select/library/items/VVWXHIU5 | |
| Datum přidání | 24. 11. 2020 13:24:16 | |
| Upraveno | 12. 7. 2021 12:33:58 |
| Autor | Noah Bedrosian | |
|---|---|---|
| Autor | Elizabeth Mitchell | |
| Autor | Elsa Rohm | |
| Autor | Miguel Rothe | |
| Autor | Christine Kelly | |
| Autor | Gabrielle String | |
| Autor | Daniele Lantagne | |
| Typ | Článek v časopise | |
| Datum | 2020-11-23 | |
| Abstrakt | We conducted a systematic review of hygiene intervention effectiveness against SARS-CoV-2, including developing inclusion criteria, conducting the search, selecting articles for inclusion, and summarizing included articles. Overall, 96 268 articles were screened and 78 articles met inclusion criteria with outcomes in surface contamination, stability, and disinfection. Surface contamination was assessed on 3343 surfaces using presence/absence methods. Laboratories had the highest percent positive surfaces (21%, n = 83), followed by patient-room healthcare facility surfaces (17%, n = 1170), non-COVID-patient-room healthcare facility surfaces (12%, n = 1429), and household surfaces (3%, n = 161). Surface stability was assessed using infectivity, SARS-CoV-2 survived on stainless steel, plastic, and nitrile for half-life 2.3–17.9 h. Half-life decreased with temperature and humidity increases, and was unvaried by surface type. Ten surface disinfection tests with SARS-CoV-2, and 15 tests with surrogates, indicated sunlight, ultraviolet light, ethanol, hydrogen peroxide, and hypochlorite attain 99.9% reduction. Overall there was (1) an inability to align SARS-CoV-2 contaminated surfaces with survivability data and effective surface disinfection methods for these surfaces; (2) a knowledge gap on fomite contribution to SARS-COV-2 transmission; (3) a need for testing method standardization to ensure data comparability; and (4) a need for research on hygiene interventions besides surfaces, particularly handwashing, to continue developing recommendations for interrupting SARS-CoV-2 transmission. | |
| Přístup | 5. 3. 2021 9:20:43 | |
| Publikace | Environmental Science & Technology | |
| Extra | Publisher: American Chemical Society | |
| ISSN | 0013-936X | |
| Katalog knihovny | ACS Publications | |
| Zkrácený název časopisu | Environ. Sci. Technol. | |
| DOI | 10.1021/acs.est.0c05651 | |
| Select in Zotero | zotero://select/library/items/WQIDY5LL | |
| Datum přidání | 5. 3. 2021 9:20:43 | |
| Upraveno | 5. 3. 2021 12:17:18 |
| Autor | Max Bueckert | |
|---|---|---|
| Autor | Rishi Gupta | |
| Autor | Aditi Gupta | |
| Autor | Mohit Garg | |
| Autor | Asit Mazumder | |
| Typ | Článek v časopise | |
| Datum | 2020-11-18 | |
| Abstrakt | The unwavering spread of COVID-19 has taken the world by storm. Preventive measures like social distancing and mask usage have been taken all around the globe but still, as of September 2020, the number of cases continues to rise in many countries. Evidently, these measures are insufficient. Although decreases in population density and surges in the public’s usage of personal protective equipment can mitigate direct transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), indirect transmission of the virus is still probable. By summarizing the current state of knowledge on the stability of coronaviruses on dry materials, this review uncovers the high potential for SARS-CoV-2 transmission through contaminated surfaces (i.e., fomites) and prompts future research. Fully contextualized data on coronavirus persistence are presented. The methods and limitations to testing the stability of coronaviruses are explored, and the SARS-CoV-2 representativeness of different coronaviruses is analyzed. The factors which dictate the persistence of coronaviruses on surfaces (media, environmental conditions, and material-type) are investigated, and the review is concluded by encouraging material innovation to combat the current pandemic. To summarize, SARS-CoV-2 remains viable on the timescale of days on hard surfaces under ambient indoor conditions. Similarly, the virus is stable on human skin, signifying the necessity of hand hygiene amidst the current pandemic. There is an inverse relationship between SARS-CoV-2 surface persistence and temperature/humidity, and the virus is well suited to air-conditioned environments (room temperature, ~ 40% relative humidity). Sunlight may rapidly inactivate the virus, suggesting that indirect transmission predominantly occurs indoors. The development of antiviral materials and surface coatings would be an extremely effective method to mitigate the spread of COVID-19. To obtain applicable data on the persistence of coronaviruses and the efficiency of virucidal materials, future researchers should understand the common experimental limitations outlined in this review and plan their studies accordingly. | |
| Přístup | 16. 12. 2020 16:04:40 | |
| Publikace | Materials | |
| Krátký název | Infectivity of SARS-CoV-2 and Other Coronaviruses on Dry Surfaces | |
| Jazyk | en | |
| Ročník | 13 | |
| Číslo | 22 | |
| Rozsah | 5211 | |
| Práva | http://creativecommons.org/licenses/by/3.0/ | |
| Extra | Number: 22 Publisher: Multidisciplinary Digital Publishing Institute | |
| Katalog knihovny | www.mdpi.com | |
| DOI | 10.3390/ma13225211 | |
| Select in Zotero | zotero://select/library/items/68S4E6CU | |
| Datum přidání | 16. 12. 2020 16:04:40 | |
| Upraveno | 13. 4. 2021 14:54:46 |
| Autor | Vikram Gopal | |
|---|---|---|
| Autor | Benjamin E. Nilsson-Payant | |
| Autor | Hollie French | |
| Autor | Jurre Y. Siegers | |
| Autor | Benjamin R. tenOever | |
| Autor | Wai-shing Yung | |
| Autor | Matthew Hardwick | |
| Autor | Aartjan J. W. te Velthuis | |
| Typ | Článek v časopise | |
| Datum | 2020-11-04 | |
| Abstrakt | Infections with respiratory viruses can spread via liquid droplets and aerosols, and cause diseases such as influenza and COVID-19. Face masks and other personal protective equipment (PPE) can act as barriers that prevent the spread of respiratory droplets containing these viruses. However, influenza A viruses and coronaviruses are stable for hours on various materials, which makes frequent and correct disposal of these PPE important. Metal ions embedded into PPE may inactivate respiratory viruses, but confounding factors such as absorption of viruses make measuring and optimizing the inactivation characteristics difficult. Here we used polyamide 6.6 (PA66) fibers that had zinc ions embedded during the polymerisation process and systematically investigated if these fibers can absorb and inactivate pandemic SARS-CoV-2 and influenza A virus H1N1. We find that these viruses are readily absorbed by PA66 fabrics and inactivated by zinc ions embedded into this fabric. The inactivation rate (pfu.gram-1.min-1) exceeds the number of active virus particles expelled by a cough and supports a wide range of viral loads. Overall, these results provide new insight into the development of "pathogen-free" PPE and better protection against RNA virus spread. | |
| Přístup | 24. 11. 2020 13:38:28 | |
| Publikace | bioRxiv | |
| Jazyk | en | |
| Rozsah | 2020.11.02.365833 | |
| Práva | © 2020, Posted by Cold Spring Harbor Laboratory. This pre-print is available under a Creative Commons License (Attribution-NoDerivs 4.0 International), CC BY-ND 4.0, as described at http://creativecommons.org/licenses/by-nd/4.0/ | |
| Extra | Publisher: Cold Spring Harbor Laboratory Section: New Results | |
| Katalog knihovny | www.biorxiv.org | |
| DOI | 10.1101/2020.11.02.365833 | |
| Select in Zotero | zotero://select/library/items/MQRJ9IDR | |
| Datum přidání | 24. 11. 2020 10:16:11 | |
| Upraveno | 5. 3. 2021 12:16:05 |
| Autor | Mohammed Adnan Hasan | |
|---|---|---|
| Autor | A. Carmel Mary Esther | |
| Autor | Arjun Dey | |
| Autor | Anoop Kumar Mukhopadhyay | |
| Typ | Článek v časopise | |
| Datum | 2020-10-19 | |
| Abstrakt | The present pandemic coronavirus disease 2019 (COVID-19) becomes a serious concern of global health threat which is elicited by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). This paper focuses on a hitherto untouched material’s engineering issue in human scientific fight against the well-known COVID-19. We show here the challenges and possibilities in engineering the surface to fight against survivability of SARS-CoV-2 that has caused a global pandemic. It is a fact that this virus causes severe acute respiratory syndrome and hence is nicknamed as e.g. SARS-CoV-2. In this perspective; the present work provides a critical survey about the severity of indirect contact mode transmission and survivability of various coronavirus families on different material surfaces. Furthermore, the possible direction for future research needed to develop antiviral material surfaces that can be regularly used to tackle such pandemic outbreaks is identified. Finally, the missing link between the biologist’s approach and the material scientist’s approach in tackling such pandemics is discussed along with scopes and challenges in future interdisciplinary research. | |
| Přístup | 3. 11. 2020 14:48:20 | |
| Publikace | Surface Engineering | |
| Krátký název | A review on coronavirus survivability on material’s surfaces | |
| Ročník | 0 | |
| Číslo | 0 | |
| Rozsah | 1-14 | |
| Extra | Publisher: Taylor & Francis _eprint: https://doi.org/10.1080/02670844.2020.1833277 | |
| ISSN | 0267-0844 | |
| Katalog knihovny | Taylor and Francis+NEJM | |
| DOI | 10.1080/02670844.2020.1833277 | |
| Select in Zotero | zotero://select/library/items/U5DIXP49 | |
| Datum přidání | 3. 11. 2020 14:48:20 | |
| Upraveno | 5. 3. 2021 12:17:14 |
| Autor | Shane Riddell | |
|---|---|---|
| Autor | Sarah Goldie | |
| Autor | Andrew Hill | |
| Autor | Debbie Eagles | |
| Autor | Trevor W. Drew | |
| Typ | Článek v časopise | |
| Datum | 2020-10-07 | |
| Abstrakt | The rate at which COVID-19 has spread throughout the globe has been alarming. While the role of fomite transmission is not yet fully understood, precise data on the environmental stability of SARS-CoV-2 is required to determine the risks of fomite transmission from contaminated surfaces. | |
| Přístup | 14. 10. 2020 11:44:30 | |
| Publikace | Virology Journal | |
| Jazyk | en | |
| Ročník | 17 | |
| Číslo | 1 | |
| Rozsah | 145 | |
| ISSN | 1743-422X | |
| Katalog knihovny | Springer Link | |
| Zkrácený název časopisu | Virol J | |
| DOI | 10.1186/s12985-020-01418-7 | |
| Select in Zotero | zotero://select/library/items/QELGBX8K | |
| Datum přidání | 14. 10. 2020 11:44:30 | |
| Upraveno | 5. 3. 2021 10:56:06 |
| Autor | Flavio De Maio | |
|---|---|---|
| Autor | Valentina Palmieri | |
| Autor | Gabriele Babini | |
| Autor | Alberto Augello | |
| Autor | Ivana Palucci | |
| Autor | Giordano Perini | |
| Autor | Alessandro Salustri | |
| Autor | Marco De Spirito | |
| Autor | Maurizio Sanguinetti | |
| Autor | Giovanni Delogu | |
| Autor | Laura Giorgia Rizzi | |
| Autor | Giulio Cesareo | |
| Autor | Patrick Soon-Shiong | |
| Autor | Michela Sali | |
| Autor | Massimiliano Papi | |
| Typ | Článek v časopise | |
| Datum | 2020-09-28 | |
| Abstrakt | Recent advancements in bidimensional nanoparticles such as Graphene nanoplatelets (G) and the derivative Graphene oxide (GO) have the potential to meet the need for highly functional personal protective equipment (PPE) that confers increased protection against SARS-CoV-2 infection and the spread COVID-19. The ability of G and GO to interact with and bind microorganisms as well as RNA and DNA provides an opportunity to develop engineered textiles for use in PPE. The face masks widely used in health care and other high-risk settings for COVID transmission provide only a physical barrier that decreases likelihood of infection and do not inactivate the virus. Here, we show pre-incubation of viral particles with free GO inhibits SARS-CoV-2 infection of VERO cells. Highly relevant to PPE materials, when either polyurethane or cotton material was loaded with G or GO and culture medium containing SARS-CoV-2 viral particles either filtered through or incubated with the functionalized materials, the infectivity of the medium was nearly completely inhibited. The findings presented here constitute an important nanomaterials-based strategy to significantly increase face mask and other PPE efficacy in protection against the SARS-CoV-2 virus and COVID-19 that may be applicable to additional anti-SARS-CoV-2 measures including water filtration, air purification, and diagnostics. | |
| Přístup | 15. 10. 2020 14:18:00 | |
| Publikace | medRxiv | |
| Jazyk | en | |
| Práva | © 2020, Posted by Cold Spring Harbor Laboratory. The copyright holder for this pre-print is the author. All rights reserved. The material may not be redistributed, re-used or adapted without the author's permission. | |
| Extra | Publisher: Cold Spring Harbor Laboratory Press | |
| Katalog knihovny | www.medrxiv.org | |
| DOI | 10.1101/2020.09.16.20194316 | |
| Select in Zotero | zotero://select/library/items/XQGVQP5S | |
| Datum přidání | 15. 10. 2020 14:18:00 | |
| Upraveno | 5. 3. 2021 12:19:28 |
| Autor | Lucy Owen | |
|---|---|---|
| Autor | Maitreyi Shivkumar | |
| Autor | Katie Laird | |
| Typ | Článek v časopise | |
| Datum | 2020-09-23 | |
| Abstrakt | Previous research indicates that SARS-CoV-2 persists on stainless steel and plastic for 72 hours to 7 days and appears to be less stable on porous surfaces. However, there is limited research on the stability of coronaviruses on a range of textiles, of which the composition and construction could have an effect on its persistence. Determination of the persistence of coronaviruses on textiles is required to evaluate the potential risk of fomite transmission via textiles; this is of particular importance in healthcare settings to inform laundering policies for the adequate decontamination of hospital linens and staff uniforms. The aim of this study is to determine the stability of model human coronaviruses for SARS-CoV-2 on a range of textile fibres and how best to decontaminate them. Human coronavirus (HCoV) OC43 was cultured on HCT-8 cells and HCoV-229E was cultured on MRC-5 cells. The optimal recovery method of virus from textiles was first determined by comparing the recovery efficiency of HCoV-OC43 from 100% cotton using differing diluents (cell culture media, phosphate buffered saline (PBS) and maximum recovery diluent (MRD)) and recovery methods (vortexing, stomaching and shaking by hand). The stability of HCoV-OC43 and HCoV-229E was then determined on 100% cotton, polyester/cotton blend, 100% polyester and calf leather up to 48 hours. A no virus (culture media only) control was included. Infectious virus was quantified by titration of the supernatant on BHK-21 cells in 96-well plates. The recovery of HCoV-OC43 from 100% cotton was comparable between PBS and culture media as diluents, whereas recovery was reduced using MRD. Shaking by hand was the most efficient recovery method used, with 98.56% of the inoculum being recovered. The stability of HCoV-OC43 was greatest on polyester, where it remained infectious for at least 6 hours. Investigations into the decontamination of model human coronaviruses under wash parameters are ongoing. Investigations on the survival of coronaviruses is required to evaluate the infection control risk of contaminated textiles and to identify laundering parameters required to adequately decontaminate linen. This study demonstrates that model coronaviruses survive on textiles, indicating that there may be a risk within the healthcare and domestic environments. | |
| Přístup | 14. 9. 2020 10:00:17 | |
| URL | https://dora.dmu.ac.uk/handle/2086/20147 | |
| Jazyk | en | |
| Extra | Accepted: 2020-09-07T14:02:30Z Publisher: ESCMID | |
| Katalog knihovny | dora.dmu.ac.uk | |
| Select in Zotero | zotero://select/library/items/6TT9IPLV | |
| Datum přidání | 14. 9. 2020 10:00:17 | |
| Upraveno | 12. 7. 2021 12:33:57 |
| Autor | Amit Kumar | |
|---|---|---|
| Autor | Kamal Sharma | |
| Autor | Amit Rai Dixit | |
| Typ | Článek v časopise | |
| Datum | 2020-09-10 | |
| Abstrakt | Coronavirus disease (COVID-19) is a recently discovered infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Graphene is an emerging material due to its extraordinary performance in the field of electronics and antimicrobial textiles. Special attention devoted to graphene oxide-based materials due to its surface to volume ratio is very high which make it easy to attach biomolecules by simple adsorption or by crosslinking between reactive groups and the graphene surface. In response to the COVID-19 pandemic, we have summarized the recent developments of graphene and its derivatives with possible virus detection and textile applications. Moreover, graphene strain sensors can be executed on high-performance textiles and high-throughput drug efficacy screening. | |
| Publikace | Medical Hypotheses | |
| Jazyk | en | |
| Ročník | 144 | |
| Rozsah | 110253 | |
| ISSN | 0306-9877 | |
| Katalog knihovny | ScienceDirect | |
| Zkrácený název časopisu | Medical Hypotheses | |
| DOI | 10.1016/j.mehy.2020.110253 | |
| Select in Zotero | zotero://select/library/items/EK9JGMMG | |
| Datum přidání | 10. 9. 2020 15:26:30 | |
| Upraveno | 5. 3. 2021 12:09:45 |
| Autor | Rafael K. Campos | |
|---|---|---|
| Autor | Nehad Saada | |
| Autor | Shannan L. Rossi | |
| Autor | Scott C. Weaver | |
| Typ | Článek v časopise | |
| Datum | 2020-09-10 | |
| Abstrakt | The coronavirus disease 2019 (COVID-19) pandemic has infected millions of people and poses a global health emergency. The disease is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), from the Betacoronavirus genus. Transmission of SARS-CoV-2 takes place through close contact from person-to-person, via fomites or through inhalation of viral particles ( 1 ). SARS-CoV-2 has been shown to retain infectivity for up to 16 h in respiratory aerosols ( 2 ) and can be viable on various surfaces for several days ( 3 ). An effective strategy for medical workers to protect themselves from infection is to wear personal protective equipment (PPE), including scrubs, which are often used over day-long shifts. Scrubs and other clothing used for long periods of time during the care of patients shedding SARS-CoV-2 may accumulate virus on its external surfaces and, without decontamination, could pose a risk to health workers ( 4 , 5 ). Self-decontaminating PPE are an elegant solution to this problem because they may reduce the risk of infection from PPE without effort from the user. Duritex TM is a natural biopolymer and disinfectant of complex chemical composition which can be bonded to fabrics by a thermal process which establishes ionic or covalent bonds, depending on the composition of the fiber used. We tested whether fabric treated with this biopolymer effectively disinfects against SARS-CoV-2. | |
| Přístup | 15. 10. 2020 13:31:03 | |
| Publikace | Journal of Hospital Infection | |
| Jazyk | English | |
| Ročník | 0 | |
| Číslo | 0 | |
| Extra | Publisher: Elsevier PMID: 32920018 | |
| ISSN | 1532-2939 | |
| Katalog knihovny | www.journalofhospitalinfection.com | |
| Zkrácený název časopisu | Journal of Hospital Infection | |
| DOI | 10.1016/j.jhin.2020.09.008 | |
| Select in Zotero | zotero://select/library/items/4EA9ASVH | |
| Datum přidání | 15. 10. 2020 13:31:03 | |
| Upraveno | 5. 3. 2021 12:21:54 |
| Autor | Loai Albarqouni | |
|---|---|---|
| Autor | Oyuka Byambasuren | |
| Autor | Justin Clark | |
| Autor | Anna Mae Scott | |
| Autor | David Looke | |
| Autor | Paul Glasziou | |
| Typ | Článek v časopise | |
| Datum | 2020-09-09 | |
| Abstrakt | Background Healthcare acquired infections (HAIs) cause substantial morbidity and mortality. Copper appears to have strong antimicrobial properties under laboratory conditions. Aim We conducted a systematic review to examine the potential effect of copper treating of commonly touched surfaces in healthcare facilities. Methods We included controlled trials comparing the effect of copper-treated surfaces (furniture or bed linens) in hospital rooms versus standard rooms on hospital acquired infections (HAIs). Two reviewers independently screened retrieved articles, extracted data, and assessed the risk of bias of included studies. The primary outcome was the occurrence of healthcare acquired infections. Findings We screened 638 records; 7 studies comprising 12362 patients were included. From risk of bias assessment, all included studies were judged to be at high risk in ≥2 of the 7 domains of bias. All 7 included studies reported the effect of various copper-treated surfaces on HAIs. Overall, we found low quality evidence of a potential clinical importance that copper-treated hard surfaces and/or bed linens and clothes reduced healthcare acquired infections by 27% (RR 0.73; 95% CI 0.57 to 0.94; I2 = 44%, p-value = 0.01). Conclusion Given the clinical and economic costs of healthcare acquired infections, the potentially protective effect of copper-treated surfaces appears important. However, the current evidence is insufficient to make a strong positive recommendation. However, it would appear worthwhile and urgent to conduct larger scale publicly funded clinical trials of the impact of copper coating. | |
| Přístup | 15. 10. 2020 12:18:42 | |
| Publikace | Journal of Hospital Infection | |
| Krátký název | Does Copper treating of commonly touched surfaces reduce healthcare acquired infections? | |
| Jazyk | en | |
| ISSN | 0195-6701 | |
| Katalog knihovny | ScienceDirect | |
| Zkrácený název časopisu | Journal of Hospital Infection | |
| DOI | 10.1016/j.jhin.2020.09.005 | |
| Select in Zotero | zotero://select/library/items/TPS7K9AJ | |
| Datum přidání | 15. 10. 2020 12:18:42 | |
| Upraveno | 5. 3. 2021 12:18:46 |
| Autor | Gadi Borkow | |
|---|---|---|
| Autor | Danny Lustiger | |
| Autor | Eyal Melamed | |
| Autor | Vicky Herrera | |
| Autor | Daniel Ackerman | |
| Autor | Patrick Reid | |
| Autor | Joshua Santarpia | |
| Typ | Článek v časopise | |
| Datum | 2020-09-08 | |
| Abstrakt | The use of protective respiratory face masks has been adopted universally as an important measure in the fight against COVID-19. Masks become contaminated by symptomatic and asymptomatic SARS-CoV-2 infected individuals and the virus can remain viable on the surface of the masks for several days. Although the regular respiratory face masks are single use disposable masks, these masks are being largely reused and not often discarded after use by the general population. Mask touching during use, reuse and disposal occurs frequently, and this can lead to increased risk of infection and further transmission. N95s and regular surgical masks were produced in which the external layers were made with nonwoven fabric impregnated with copper-oxide microparticles. The masks reduced the infectious titers of SARS-CoV-2 by more than 99.9% within 1 minute of contact, as determined by TCID50 assay and serial PCR assays. The use of masks capable of rendering the SARS-CoV-2 non-infectious within minutes, may significantly reduce the risk of viral transmission and infection. | |
| Přístup | 14. 9. 2020 10:11:20 | |
| Jazyk | en | |
| Katalog knihovny | www.researchsquare.com | |
| DOI | 10.21203/rs.3.rs-60610/v1 | |
| Select in Zotero | zotero://select/library/items/94L9E8VI | |
| Datum přidání | 14. 9. 2020 10:11:20 | |
| Upraveno | 5. 3. 2021 12:17:31 |
| Autor | Lalit M. Pandey | |
|---|---|---|
| Typ | Článek v časopise | |
| Datum | 2020-09-01 | |
| Abstrakt | The outermost surfaces of Personal Protective Equipments (PPEs) interact with virus surface-protein as the first step during its transmission from aerosols and contacting surfaces, which can be tuned by surface engineering/modification. This report highlights the role of engineered surface chemistry of PPEs to avoid the spreading of the novel SARS-CoV-2 virus in hospitals. Physical properties of surfaces and spike-glycoprotein are correlated with the reported stability of SARS-CoV-2. The spike-protein is reported to be hydrophobic in nature with an isoelectric point of 5.9. Hence surface with both positive charge and hydrophobic groups are expected to achieve a strong binding with the surface spike-protein. Various surface engineering strategies of polypropylene and other materials with hybrid self-assembled monolayers and dopamine are discussed to design the mixed hydrophobic and charged surfaces. The strong surface-protein interactions may lead to severe conformational changes and destabilization of the viral envelope, which can disintegrate and inactivate the novel coronavirus. | |
| Přístup | 14. 9. 2020 9:22:52 | |
| Publikace | Surface Engineering | |
| Ročník | 36 | |
| Číslo | 9 | |
| Rozsah | 901-907 | |
| Extra | Publisher: Taylor & Francis _eprint: https://doi.org/10.1080/02670844.2020.1801034 | |
| ISSN | 0267-0844 | |
| Katalog knihovny | Taylor and Francis+NEJM | |
| DOI | 10.1080/02670844.2020.1801034 | |
| Select in Zotero | zotero://select/library/items/ANXLXZGM | |
| Datum přidání | 14. 9. 2020 9:22:52 | |
| Upraveno | 13. 4. 2021 14:58:44 |
| Autor | Gabriele Cervino | |
|---|---|---|
| Autor | Luca Fiorillo | |
| Autor | Giovanni Surace | |
| Autor | Valeria Paduano | |
| Autor | Maria Teresa Fiorillo | |
| Autor | Rosa De Stefano | |
| Autor | Riccardo Laudicella | |
| Autor | Sergio Baldari | |
| Autor | Michele Gaeta | |
| Autor | Marco Cicciù | |
| Typ | Článek v časopise | |
| Datum | 2020-09 | |
| Abstrakt | The coronavirus pandemic is causing confusion in the world. This confusion also affects the different guidelines adopted by each country. The persistence of Coronavirus, responsible for coronavirus disease 2019 (Covid-19) has been evaluated by different articles, but it is still not well-defined, and the method of diffusion is unclear. The aim of this manuscript is to underline new Coronavirus persistence features on different environments and surfaces. The scientific literature is still poor on this topic and research is mainly focused on therapy and diagnosis, rather than the characteristics of the virus. These data could be an aid to summarize virus features and formulate new guidelines and anti-spread strategies. | |
| Přístup | 14. 9. 2020 10:09:52 | |
| Publikace | Data | |
| Krátký název | SARS-CoV-2 Persistence | |
| Jazyk | en | |
| Ročník | 5 | |
| Číslo | 3 | |
| Rozsah | 81 | |
| Práva | http://creativecommons.org/licenses/by/3.0/ | |
| Extra | Number: 3 Publisher: Multidisciplinary Digital Publishing Institute | |
| Katalog knihovny | www.mdpi.com | |
| DOI | 10.3390/data5030081 | |
| Select in Zotero | zotero://select/library/items/H6AIDY6N | |
| Datum přidání | 14. 9. 2020 10:09:52 | |
| Upraveno | 5. 3. 2021 12:20:09 |
| Autor | Taeyong Kwon | |
|---|---|---|
| Autor | Natasha N. Gaudreault | |
| Autor | Juergen A. Richt | |
| Typ | Článek v časopise | |
| Datum | 2020-08-30 | |
| Abstrakt | We report the stability of SARS-CoV-2 on various surfaces under indoor, summer and spring/fall conditions. The virus was more stable under the spring/fall condition with virus half-lives ranging from 17.11 to 31.82 hours, whereas under indoor and summer conditions the virus half-lives were 3.5–11.33 and 2.54–5.58 hours, respectively. | |
| Přístup | 15. 10. 2020 14:07:28 | |
| Publikace | bioRxiv | |
| Jazyk | en | |
| Práva | © 2020, Posted by Cold Spring Harbor Laboratory. This pre-print is available under a Creative Commons License (Attribution-NonCommercial-NoDerivs 4.0 International), CC BY-NC-ND 4.0, as described at http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| Extra | Publisher: Cold Spring Harbor Laboratory Section: New Results | |
| Katalog knihovny | www.biorxiv.org | |
| DOI | 10.1101/2020.08.30.274241 | |
| Select in Zotero | zotero://select/library/items/ZPZS345U | |
| Datum přidání | 15. 10. 2020 14:07:28 | |
| Upraveno | 5. 3. 2021 12:19:22 |
| Autor | Lucy Owen | |
|---|---|---|
| Autor | Katie Laird | |
| Typ | Článek v časopise | |
| Datum | 2020-08-25 | |
| Abstrakt | Background Infectious diseases are a significant threat in both healthcare and community settings. Healthcare associated infections (HCAIs) in particular are a leading cause of complications during hospitalisation. Contamination of the healthcare environment is recognised as a source of infectious disease yet the significance of porous surfaces including healthcare textiles as fomites is not well understood. It is currently assumed there is little infection risk from textiles due to a lack of direct epidemiological evidence. Decontamination of healthcare textiles is achieved with heat and/or detergents by commercial or in-house laundering with the exception of healthcare worker uniforms which are laundered domestically in some countries. The emergence of the COVID-19 pandemic has increased the need for rigorous infection control including effective decontamination of potential fomites in the healthcare environment. This article aims to review the evidence for the role of textiles in the transmission of infection, outline current procedures for laundering healthcare textiles and review studies evaluating the decontamination efficacy of domestic and industrial laundering. Methodology Pubmed, Google Scholar and Web of Science were searched for publications pertaining to the survival and transmission of microorganisms on textiles with a particular focus on the healthcare environment. Results A number of studies indicate that microorganisms survive on textiles for extended periods of time and can transfer on to skin and other surfaces suggesting it is biologically plausible that HCAIs and other infectious diseases can be transmitted directly through contact with contaminated textiles. Accordingly, there are a number of case studies that link small outbreaks with inadequate laundering or infection control processes surrounding healthcare laundry. Studies have also demonstrated the survival of potential pathogens during laundering of healthcare textiles, which may increase the risk of infection supporting the data published on specific outbreak case studies. Conclusions There are no large-scale epidemiological studies demonstrating a direct link between HCAIs and contaminated textiles yet evidence of outbreaks from published case studies should not be disregarded. Adequate microbial decontamination of linen and infection control procedures during laundering are required to minimise the risk of infection from healthcare textiles. Domestic laundering of healthcare worker uniforms is a particular concern due to the lack of control and monitoring of decontamination, offering a route for potential pathogens to enter the clinical environment. Industrial laundering of healthcare worker uniforms provides greater assurances of adequate decontamination compared to domestic laundering, due to the ability to monitor laundering parameters; this is of particular importance during the COVID-19 pandemic to minimise any risk of SARS-CoV-2 transmission. | |
| Publikace | PeerJ | |
| Jazyk | English | |
| Archiv | Coronavirus Research Database; ProQuest Central | |
| Místo v archivu | 2436969613 | |
| Extra | Place: San Diego Publisher: PeerJ, Inc. | |
| DOI | 10.7717/peerj.9790 | |
| Select in Zotero | zotero://select/library/items/B3WL4IJB | |
| Datum přidání | 10. 9. 2020 15:06:17 | |
| Upraveno | 5. 3. 2021 12:14:37 |
Copyright - © 2020 Owen and Laird. This is an open access article distributed under the terms of the Creative Commons Attribution License: https://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.
Copyright - © 2020 Owen and Laird. This is an open access article distributed under the terms of the Creative Commons Attribution License: https://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.
Název - World Health Organization
Název - World Health Organization
Poslední aktualizace - 2020-08-26
Poslední aktualizace - 2020-08-26
| Autor | Alicia N. M. Kraay | |
|---|---|---|
| Autor | Michael A. L. Hayashi | |
| Autor | David M. Berendes | |
| Autor | Julia S. Sobolik | |
| Autor | Juan S. Leon | |
| Autor | Benjamin A. Lopman | |
| Typ | Článek v časopise | |
| Datum | 2020-08-13 | |
| Abstrakt | <h3>Abstract</h3> <p>SARS-CoV-2 can persist on surfaces, suggesting that surface-based transmission might be important for this pathogen. We find that fomites may be a substantial source of risk, particularly in schools and child daycares. Combining surface cleaning and decontamination with strategies to reduce pathogen shedding on surfaces can help mitigate this risk.</p> | |
| Přístup | 13. 4. 2021 13:51:00 | |
| URL | https://www.medrxiv.org/content/10.1101/2020.08.10.20171629v1 | |
| Publikace | medRxiv | |
| Krátký název | Risk of fomite-mediated transmission of SARS-CoV-2 in child daycares, schools, and offices | |
| Jazyk | en | |
| Rozsah | 2020.08.10.20171629 | |
| Práva | © 2020, Posted by Cold Spring Harbor Laboratory. This pre-print is available under a Creative Commons License (Attribution-NonCommercial-NoDerivs 4.0 International), CC BY-NC-ND 4.0, as described at http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| Extra | Publisher: Cold Spring Harbor Laboratory Press | |
| Katalog knihovny | www.medrxiv.org | |
| DOI | 10.1101/2020.08.10.20171629 | |
| Select in Zotero | zotero://select/library/items/PFX7AEJ2 | |
| Datum přidání | 13. 4. 2021 13:51:00 | |
| Upraveno | 13. 4. 2021 13:51:00 |
| Autor | Michel Pelisser | |
|---|---|---|
| Autor | Joe Thompson | |
| Autor | Dasha Majra | |
| Autor | Sonia Youhanna | |
| Autor | Justin Stebbing | |
| Autor | Peter Davies | |
| Typ | Článek v časopise | |
| Datum | 2020-07-10 | |
| Abstrakt | Objects passed from one player to another have not been assessed for their ability to transmit severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). We found that the surface of sport balls, notably a football, tennis ball, golf ball, and cricket ball could not harbour inactivated virus when it was swabbed onto the surface, even for 30 seconds. However, when high concentrations of 5,000 dC/mL and 10,000 dC/mL are directly pipetted onto the balls, it could be detected after for short time periods. Sports objects can only harbour inactivated SARS-CoV-2 under specific, directly transferred conditions, but wiping with a dry tissue or moist ‘baby wipe’ or dropping and rolling the balls removes all detectable viral traces. This has helpful implications to sporting events. | |
| Přístup | 28. 7. 2020 12:06:25 | |
| Publikace | Public Health in Practice | |
| Jazyk | en | |
| ISSN | 2666-5352 | |
| Katalog knihovny | ScienceDirect | |
| Zkrácený název časopisu | Public Health in Practice | |
| DOI | 10.1016/j.puhip.2020.100029 | |
| Select in Zotero | zotero://select/library/items/YDR3E75N | |
| Datum přidání | 28. 7. 2020 12:06:25 | |
| Upraveno | 5. 3. 2021 12:20:58 |
| Autor | David Harbourt | |
|---|---|---|
| Autor | Andrew Haddow | |
| Autor | Ashley Piper | |
| Autor | Holly Bloomfield | |
| Autor | Brian Kearney | |
| Autor | Kathleen Gibson | |
| Autor | Tim Minogue | |
| Typ | Článek v časopise | |
| Datum | 2020-07-03 | |
| Abstrakt | A new coronavirus (SARS-CoV-2) emerged in the winter of 2019 in Wuhan, China, and rapidly spread around the world. The extent and efficiency of SARS-CoV-2 pandemic is far greater than previous coronaviruses that emerged in the 21st Century. Here, we modeled stability of SARS-CoV-2 on skin, paper currency, and clothing to determine if these surfaces may factor in the fomite transmission dynamics of SARS-CoV-2. Skin, currency, and clothing samples were exposed to SARS-CoV-2 under laboratory conditions and incubated at three different temperatures (4C, 22C, and 37C). Stability was evaluated at 0 hours (h), 4 h, 8 h, 24 h, 72 h, 96 h, 7 days, and 14 days post-exposure. SARS-CoV-2 was shown to be stable on skin through the duration of the experiment at 4C (14 days). Virus remained stable on skin for at least 96 h at 22C and for at least 8h at 37C. There were minimal differences between the tested currency samples. The virus remained stable on the $1 U.S.A. Bank Note for at least 96 h at 4C while viable virus was not detected on the $20 U.S.A. Bank Note samples beyond 72 h. The virus remained stable on both Bank Notes for at least 8 h at 22C and 4 h at 37C. Clothing samples were similar in stability to the currency with the virus being detected for at least 96 h at 4C and at least 4 h at 22C. No viable virus was detected on clothing samples at 37C after initial exposure. This study confirms the inverse relationship between virus stability and temperature. Furthermore, virus stability on skin demonstrates the need for continued hand hygiene practices to minimize fomite transmission both in the general population as well as workplaces where close contact is common. | |
| Přístup | 9. 7. 2020 8:24:41 | |
| Publikace | medRxiv | |
| Jazyk | en | |
| Práva | © 2020, Posted by Cold Spring Harbor Laboratory. The copyright holder for this pre-print is the author. All rights reserved. The material may not be redistributed, re-used or adapted without the author's permission. | |
| Extra | Publisher: Cold Spring Harbor Laboratory Press | |
| ISSN | 2014-4253 | |
| Katalog knihovny | www.medrxiv.org | |
| DOI | 10.1101/2020.07.01.20144253 | |
| Select in Zotero | zotero://select/library/items/D6DVRBRE | |
| Datum přidání | 9. 7. 2020 8:24:41 | |
| Upraveno | 5. 3. 2021 12:19:43 |
| Autor | Hamada A. Aboubakr | |
|---|---|---|
| Autor | Tamer A. Sharafeldin | |
| Autor | Sagar M. Goyal | |
| Typ | Článek v časopise | |
| Datum | 2020-06-30 | |
| Abstrakt | Although the unprecedented efforts the world has been taking to control the spread of the human coronavirus disease (COVID-19) and its causative etiology [Severe Acute Respiratory Syndrome-Coronavirus-2 (SARS-CoV-2)], the number of confirmed cases has been increasing drastically. Therefore, there is an urgent need for devising more efficient preventive measures, to limit the spread of the infection until an effective treatment or vaccine is available. The preventive measures depend mainly on the understanding of the transmission routes of this virus, its environmental stability, and its persistence on common touch surfaces. Due to the very limited knowledge about SARS-CoV-2, we can speculate its stability in the light of previous studies conducted on other human and animal coronaviruses. In this review, we present the available data on the stability of coronaviruses (CoVs), including SARS-CoV-2, from previous reports to help understand its environmental survival. According to available data, possible airborne transmission of SARS-CoV-2 has been suggested. SARS-CoV-2 and other human and animal CoVs have remarkably short persistence on copper, latex, and surfaces with low porosity as compared to other surfaces like stainless steel, plastics, glass, and highly porous fabrics. It has also been reported that SARS-CoV-2 is associated with diarrhea and that it is shed in the feces of COVID-19 patients. Some CoVs show persistence in human excrement, sewage, and waters for a few days. These findings suggest a possible risk of fecal-oral, foodborne, and waterborne transmission of SARS-CoV-2 in developing countries that often use sewage-polluted waters in irrigation and have poor water treatment systems. CoVs survive longer in the environment at lower temperatures and lower relative humidity. It has been suggested that large numbers of COVID-19 cases are associated with cold and dry climates in temperate regions of the world and that seasonality of the virus spread is suspected. | |
| Přístup | 9. 7. 2020 8:10:54 | |
| Publikace | Transboundary and Emerging Diseases | |
| Krátký název | Stability of SARS-CoV-2 and other coronaviruses in the environment and on common touch surfaces and the influence of climatic conditions | |
| Jazyk | en | |
| Ročník | n/a | |
| Číslo | n/a | |
| Práva | This article is protected by copyright. All rights reserved. | |
| Extra | _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/tbed.13707 | |
| ISSN | 1865-1682 | |
| Katalog knihovny | Wiley Online Library | |
| DOI | 10.1111/tbed.13707 | |
| Select in Zotero | zotero://select/library/items/9SHRMEN2 | |
| Datum přidání | 9. 7. 2020 8:10:54 | |
| Upraveno | 5. 3. 2021 12:21:15 |
| Autor | Guilherme Carvalho Tremiliosi | |
|---|---|---|
| Autor | Luiz Gustavo Pagotto Simoes | |
| Autor | Daniel Tamassia Minozzi | |
| Autor | Renato Ignacio Santos | |
| Autor | Daiane Barboza Vilela | |
| Autor | Edison Luiz Durigon | |
| Autor | Rafael Rahal Guaragna Machado | |
| Autor | Douglas Sales Medina | |
| Autor | Lara Kelly Ribeiro | |
| Autor | Ieda Lucia Viana Rosa | |
| Autor | Marcelo Assis | |
| Autor | Juan Manuel Andres Bort | |
| Autor | Elson Longo | |
| Autor | Lucio H. Freitas-Junior | |
| Typ | Článek v časopise | |
| Datum | 2020-06-26 | |
| Abstrakt | Pathogens (bacteria, fungus and virus) are becoming a potential threat to the health of human beings and environment worldwide. They widely exist in the environment, with characteristics of variety, spreading quickly and easily causing adverse reactions. In this work, an Ag-based material is used to be incorporated and functionalized in polycotton fabrics using pad-dry-cure method. This composite proved to be effective for inhibiting the SARS-CoV-2 virus, decreasing the number of replicates in 99.99% after an incubation period of 2 minutes. In addition, it caused 99.99% inhibition of the pathogens S. aureus, E. coli and C. albicans, preventing cross-infections and does not cause allergies or photoirritation processes, demonstrating the safety of its use. Competing Interest Statement The authors Guilherme C. Tremiliosi, Luiz Gustavo P. Simoes, Daniel T. Minozzi, Renato I. Santos and Daiane C. B. Vilela either work or are stockholders at Nanox Tecnologia SA Footnotes * http://www.nanox.com.br * http://cdmf.org.br/ * http://ww3.icb.usp.br/ * https://www.uji.es/departaments/qfa/ | |
| Přístup | 7. 7. 2020 14:41:40 | |
| Publikace | BioRxiv | |
| Jazyk | English | |
| Práva | © 2020. This article is published under http://creativecommons.org/licenses/by-nd/4.0/ (“the License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. | |
| Extra | DOI: http://dx.doi.org/10.1101/2020.06.26.152520 Place: Cold Spring Harbor, United States, Cold Spring Harbor Publisher: Cold Spring Harbor Laboratory Press Section: New Results | |
| DOI | 10.1101/2020.06.26.152520 | |
| Select in Zotero | zotero://select/library/items/38ZBQBD8 | |
| Datum přidání | 7. 7. 2020 14:41:40 | |
| Upraveno | 5. 3. 2021 12:17:22 |
| Autor | Carrie Whitworth | |
|---|---|---|
| Autor | Yi Mu | |
| Autor | Hollis Houston | |
| Autor | Marla Martinez-Smith | |
| Autor | Judith Noble-Wang | |
| Autor | Angela Coulliette-Salmond | |
| Autor | Laura Rose | |
| Typ | Článek v časopise | |
| Datum | 2020-06-26 | |
| Abstrakt | The infection of healthcare workers during the 2013 -2016 Ebola outbreak raised concerns about fomite transmission. In the wake of the Coronavirus Disease 2019 (COVID-19) pandemic, investigations are ongoing to determine the role of fomites in coronavirus transmission as well. The bacteriophage Phi 6 has a phospholipid envelope and is commonly used in environmental studies as a surrogate for human enveloped viruses. The persistence of Phi 6 was evaluated as a surrogate for EBOV and coronaviruses on porous and nonporous hospital surfaces. Phi 6 was suspended in a body fluid simulant and inoculated onto 1 cm2 coupons of steel, plastic, and two fabric curtain types. The coupons were placed at two controlled absolute humidity (AH) levels; a low AH of 3.0 g/m3 and a high AH of 14.4 g/m3. Phi 6 declined at a slower rate on all materials under low AH conditions with a decay rate of 0.06 log10PFU/d to 0.11 log10PFU/d, as compared to the higher AH conditions with a decay rate of 0.65 log10PFU/h to 1.42 log10PFU/d. There was a significant difference in decay rates between porous and non-porous surfaces at both low AH (P < 0.0001) and high AH (P < 0.0001). Under these laboratory-simulated conditions, Phi 6 was found to be a conservative surrogate for EBOV under low AH conditions, in that it persisted longer than Ebola virus in similar AH conditions. Additionally, some coronaviruses persist longer than phi6 under similar conditions, therefore Phi6 may not be a suitable surrogate for coronaviruses. IMPORTANCE Understanding the persistence of enveloped viruses helps inform infection control practices and procedures in healthcare facilities and community settings. These data convey to public health investigators that enveloped viruses can persist and remain infective on surfaces, thus demonstrating a potential risk for transmission. Under these laboratory-simulated western indoor hospital conditions, Phi 6 was used to assess suitability as a surrogate for environmental persistence research related to enveloped viruses, including EBOV and coronaviruses. | |
| Přístup | 9. 7. 2020 8:22:31 | |
| Publikace | Applied and Environmental Microbiology | |
| Jazyk | en | |
| Práva | This is a work of the U.S. Government and is not subject to copyright protection in the United States. Foreign copyrights may apply. | |
| Extra | Publisher: American Society for Microbiology Section: Public and Environmental Health Microbiology PMID: 32591388 | |
| ISSN | 1098-5336 | |
| Katalog knihovny | aem.asm.org | |
| Zkrácený název časopisu | Appl. Environ. Microbiol. | |
| DOI | 10.1128/AEM.01482-20 | |
| Select in Zotero | zotero://select/library/items/2U7ZPRWG | |
| Datum přidání | 9. 7. 2020 8:22:31 | |
| Upraveno | 5. 3. 2021 12:19:52 |
| Autor | Cuay Yusnianingsih | |
|---|---|---|
| Autor | Shannon Marcella Evangelina | |
| Typ | Článek v časopise | |
| Datum | 2020-06-11 | |
| Abstrakt | The novel coronavirus, which is now known as COVID-19, has caused a global pandemic. It is known that the main transmission routes of the novel coronavirus are through droplets, close human-to-human contact, and contact with inanimate surfaces contaminated by the virus. Thus, it is important to find out how long SARS-CoV-2 can remain viable on different surfaces. A study by van Doremalen et al. (2020) found that SARS-CoV-2 can remain viable for up to 72 hours on plastic and stainless steel surfaces, 4 hours on copper, and 24 hours on cardboard. Chin et al. (2020) reported that SARS-CoV-2 could persist on wood and cloth for 2 days, and could last for 4 days on glass and banknotes. These findings indicate that viral contamination of object surfaces is an important and dangerous factor in spread of disease, emphasizing the urgent need for prevention strategies against transmission of infection through contact with inanimate surfaces. | |
| Přístup | 9. 7. 2020 8:17:21 | |
| Publikace | Medicinus | |
| Krátký název | Surface Contamination Of Covid-19 | |
| Jazyk | en-US | |
| Ročník | 7 | |
| Číslo | 5 | |
| Rozsah | 118-119 | |
| Práva | Copyright (c) 2020 Cuay Yusnianingsih, Shannon Marcella Evangelina | |
| Extra | Number: 5 | |
| ISSN | 2622-6995 | |
| Katalog knihovny | 122.200.2.51 | |
| DOI | 10.19166/med.v7i5.2468 | |
| Select in Zotero | zotero://select/library/items/4U3YUFIJ | |
| Datum přidání | 9. 7. 2020 8:17:21 | |
| Upraveno | 5. 3. 2021 12:21:37 |
| Autor | Cristina Balagna | |
|---|---|---|
| Autor | Sergio Perero | |
| Autor | Elena Percivalle | |
| Autor | Edoardo Vecchio Nepita | |
| Autor | Monica Ferraris | |
| Typ | Článek v časopise | |
| Datum | 2020-06-06 | |
| Abstrakt | During the current pandemic of COVID-19 caused by the new Coronavirus SARS-CoV-2, the confinement measures slowed down the contagion, but did not completely avoid the disease diffusion for health workers, patients and the remaining population. The individual protection equipment (e.g. facial masks), filters for air conditioning systems and for medical respiratory devices do not possess an intrinsic antimicrobial/virucidal action and they are susceptible to microbial/viral colonization. An efficient antimicrobial/virucidal technology on air filtering media is crucial for maintaining a safe air environment and protecting people, in particular when lockdown is eased. This short communication reports about the virucidal effect, preliminary verified towards Coronavirus SARS-CoV-2, of a silver nanocluster/silica composite sputtered coating, directly applicated on a FFP3 mask. | |
| Přístup | 15. 10. 2020 13:36:23 | |
| Publikace | Open Ceramics | |
| Jazyk | en | |
| Ročník | 1 | |
| Rozsah | 100006 | |
| ISSN | 2666-5395 | |
| Katalog knihovny | ScienceDirect | |
| Zkrácený název časopisu | Open Ceramics | |
| DOI | 10.1016/j.oceram.2020.100006 | |
| Select in Zotero | zotero://select/library/items/LJFYUM3G | |
| Datum přidání | 2. 7. 2020 9:09:36 | |
| Upraveno | 5. 3. 2021 12:15:47 |
| Autor | Abhishek Sen | |
|---|---|---|
| Autor | Dolly Khona | |
| Autor | Subhadip Ghatak | |
| Autor | Vinoj Gopalakrishnan | |
| Autor | Kenneth Cornetta | |
| Autor | Sashwati Roy | |
| Autor | Savita Khanna | |
| Autor | Chandan Sen | |
| Typ | Článek v časopise | |
| Datum | 2020-05-15 | |
| Abstrakt | Coronavirus with intact infectivity attached to PPE surfaces pose significant threat to the spread of COVID-19. We tested the hypothesis that an electroceutical fabric, generating weak potential difference of 0.5V, disrupts the infectivity of coronavirus upon contact by destabilizing the electrokinetic properties of the virion. Respiratory coronavirus particles (105) were placed in direct contact with the fabric for 1 or 5 minutes. Viral particles (2.5-4x104) were recovered from the fabric. Following one minute of contact, zeta potential of the coronavirus was significantly lowered indicating destabilization of its electrokinetic properties. Size-distribution plot showed appearance of aggregation of the virus. Testing of the cytopathic effects of the virus showed eradication of infectivity as quantitatively assessed by PI-calcein and MTT cell viability tests. This work provides the rationale to consider the studied electroceutical fabric, or other materials with comparable property, as material of choice for the development of PPE in the fight against COVID-19. | |
| Přístup | 19. 5. 2020 7:54:46 | |
| Jazyk | en | |
| Extra | Publisher: ChemRxiv | |
| Katalog knihovny | chemrxiv.org | |
| DOI | 10.26434/chemrxiv.12307214.v1 | |
| Select in Zotero | zotero://select/library/items/I3GPMCWD | |
| Datum přidání | 19. 5. 2020 7:54:46 | |
| Upraveno | 5. 3. 2021 11:53:06 |
| Autor | Günter Kampf | |
|---|---|---|
| Typ | Článek v časopise | |
| Datum | 2020-05-15 | |
| Abstrakt | Aims: Healthcare-associated infections linked to contaminated textiles are rare but underline their potential role as a source for transmission. The aim of the review was to summarize the experimental evidence on the survival and persistence of the different types of nosocomial pathogens on textiles., Methods: A literature search was performed on MedLine. Original data on the survival of bacteria, mycobacteria, and fungi and persistence of viruses on textiles were evaluated., Results: The survival of bacteria at room temperature was the longest on polyester (up to 206 days), whereas it was up to 90 days for some species on cotton and mixed fibers. Only low inocula of 100 CFU were found on all types of textiles with a short survival time of ≤3 days. Most bacterial species survived better at elevated air humidity. The infectivity of viruses on textiles is lost much faster at room temperature, typically within 2–4 weeks., Conclusions: Contaminated textiles or fabrics may be a source of transmission for weeks. The presence of pathogens on the coats of healthcare workers is associated with the presence of pathogens on their hands, demonstrating the relevance of textile contamination in patient care. | |
| Přístup | 3. 7. 2020 8:37:22 | |
| Publikace | GMS Hygiene and Infection Control | |
| Krátký název | How long can nosocomial pathogens survive on textiles? | |
| Ročník | 15 | |
| Extra | PMID: 32547910 PMCID: PMC7273332 | |
| ISSN | 2196-5226 | |
| Katalog knihovny | PubMed Central | |
| Zkrácený název časopisu | GMS Hyg Infect Control | |
| DOI | 10.3205/dgkh000345 | |
| Select in Zotero | zotero://select/library/items/39YXLHPE | |
| Datum přidání | 3. 7. 2020 8:37:22 | |
| Upraveno | 5. 3. 2021 12:19:35 |
| Autor | Hamada Aboubakr | |
|---|---|---|
| Autor | Tamer A Sharafeldin | |
| Autor | Sagar M. Goyal | |
| Typ | Zpráva | |
| Datum | 2020-04-24 | |
| Abstrakt | Although the unprecedented efforts the world has been taking to control the spread of the human coronavirus disease (COVID-19) and its causative etiology [Severe Acute Respiratory Syndrome-Coronavirus 2 (SARS-CoV2)], the number of confirmed cases has been increasing drastically. Therefore, there is an urgent need for devising more efficient preventive measures, to limit the spread of the infection until an effective treatment or vaccine is available. The preventive measures depend mainly on the understanding of the transmission routes of this virus, its environmental stability, and its persistence on common touch surfaces. Due to the very limited knowledge about SARS-CoV2, we can speculate its stability in the light of previous studies conducted on other human and animal coronaviruses. In this review, we present the available data on the stability of coronaviruses (CoVs), including SARS-CoV2, from previous reports to help understand its environmental survival. According to available data, possible airborne transmission of SARS-CoV2 has been suggested. SARS-CoV2 and other human and animal CoVs have remarkably short persistence on copper, latex, and surfaces with low porosity as compared to other surfaces like stainless steel, plastics, glass, and highly porous fabrics. It has also been reported that SARS-CoV2 is associated with diarrhea and that it is shed in the feces of COVID-19 patients. Some CoVs show persistence in human excrement, sewage, and waters for a few days. These findings suggest a possible risk of fecal-oral, foodborne, and waterborne transmission of SARS-CoV2 in developing countries that often use sewage-polluted waters in irrigation and have poor water treatment systems. CoVs survive longer in the environment at lower temperatures and lower relative humidity. It has been suggested that large numbers of COVID-19 cases are associated with cold and dry climates in temperate regions of the world and that seasonality of the virus spread is suspected. | |
| Přístup | 28. 5. 2020 13:03:15 | |
| URL | https://osf.io/y2rth | |
| Krátký název | Stability of SARS-CoV2 and other coronaviruses in the environment and on common touch surfaces and the influence of climatic conditions | |
| Extra | DOI: 10.31219/osf.io/y2rth | |
| Katalog knihovny | DOI.org (Crossref) | |
| Select in Zotero | zotero://select/library/items/EIHBZ9NC | |
| Datum přidání | 28. 5. 2020 13:03:15 | |
| Upraveno | 14. 9. 2020 10:38:52 |
| Autor | Alex Chin | |
|---|---|---|
| Autor | Julie Chu | |
| Autor | Mahen Perera | |
| Autor | Kenrie Hui | |
| Autor | Hui-Ling Yen | |
| Autor | Michael Chan | |
| Autor | Malik Peiris | |
| Autor | Leo Poon | |
| Typ | Článek v časopise | |
| Datum | 2020-03-27 | |
| Abstrakt | Stability of SARS-CoV-2 in different environmental conditions. | |
| Přístup | 28. 5. 2020 12:48:29 | |
| Publikace | medRxiv | |
| Jazyk | en | |
| Rozsah | 2020.03.15.20036673 | |
| Práva | © 2020, Posted by Cold Spring Harbor Laboratory. This pre-print is available under a Creative Commons License (Attribution-NonCommercial-NoDerivs 4.0 International), CC BY-NC-ND 4.0, as described at http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| Extra | Publisher: Cold Spring Harbor Laboratory Press | |
| Katalog knihovny | www.medrxiv.org | |
| DOI | 10.1101/2020.03.15.20036673 | |
| Select in Zotero | zotero://select/library/items/R47LRA6B | |
| Datum přidání | 28. 5. 2020 12:48:29 | |
| Upraveno | 5. 3. 2021 12:21:18 |
| Autor | Yonghyan Kim | |
|---|---|---|
| Autor | Venkatramana D. Krishna | |
| Autor | Montserrat Torremorell | |
| Autor | Sagar M. Goyal | |
| Autor | Maxim C.-J. Cheeran | |
| Typ | Článek v časopise | |
| Datum | 2018-03 | |
| Abstrakt | Indirect transmission of porcine epidemic diarrhea virus (PEDV) ensues when susceptible animals contact PEDV-contaminated fomite materials. Although the survival of PEDV under various pHs and temperatures has been studied, virus stability on different fomite surfaces under varying temperature conditions has not been explored. Hence, we evaluated the survival of PEDV on inanimate objects routinely used on swine farms such as styrofoam, rubber, plastic, coveralls, and other equipment. The titer of infectious PEDV at 4 °C decreased by only 1 to 2 log during the first 5 days, and the virus was recoverable for up to 15 days on Styrofoam, aluminum, Tyvek® coverall, cloth, and plastic. However, viral titers decreased precipitously when stored at room temperature; no virus was detectable after one day on all materials tested. A more sensitive immunoplaque assay was able to detect virus from Styrofoam, metal, and plastic at 20 days post application, representing a 3-log loss of input virus on fomite materials. Recovery of infectious PEDV from Tyvek® coverall and rubber was above detection limit at 20 days. Our findings indicate that the type of fomite material and temperatures impact PEDV stability, which is important in understanding the nuances of indirect transmission and epidemiology of PEDV. | |
| Přístup | 28. 5. 2020 13:10:41 | |
| Publikace | Veterinary Sciences | |
| Jazyk | en | |
| Ročník | 5 | |
| Číslo | 1 | |
| Rozsah | 21 | |
| Práva | http://creativecommons.org/licenses/by/3.0/ | |
| Extra | Number: 1 Publisher: Multidisciplinary Digital Publishing Institute | |
| Katalog knihovny | www.mdpi.com | |
| DOI | 10.3390/vetsci5010021 | |
| Select in Zotero | zotero://select/library/items/UPV3N2HB | |
| Datum přidání | 28. 5. 2020 13:10:41 | |
| Upraveno | 5. 3. 2021 12:21:08 |
| Autor | J. A. Otter | |
|---|---|---|
| Autor | C. Donskey | |
| Autor | S. Yezli | |
| Autor | S. Douthwaite | |
| Autor | S. D. Goldenberg | |
| Autor | D. J. Weber | |
| Typ | Článek v časopise | |
| Datum | 2016-03-01 | |
| Abstrakt | Viruses with pandemic potential including H1N1, H5N1, and H5N7 influenza viruses, and severe acute respiratory syndrome (SARS)/Middle East respiratory syndrome (MERS) coronaviruses (CoV) have emerged in recent years. SARS-CoV, MERS-CoV, and influenza virus can survive on surfaces for extended periods, sometimes up to months. Factors influencing the survival of these viruses on surfaces include: strain variation, titre, surface type, suspending medium, mode of deposition, temperature and relative humidity, and the method used to determine the viability of the virus. Environmental sampling has identified contamination in field-settings with SARS-CoV and influenza virus, although the frequent use of molecular detection methods may not necessarily represent the presence of viable virus. The importance of indirect contact transmission (involving contamination of inanimate surfaces) is uncertain compared with other transmission routes, principally direct contact transmission (independent of surface contamination), droplet, and airborne routes. However, influenza virus and SARS-CoV may be shed into the environment and be transferred from environmental surfaces to hands of patients and healthcare providers. Emerging data suggest that MERS-CoV also shares these properties. Once contaminated from the environment, hands can then initiate self-inoculation of mucous membranes of the nose, eyes or mouth. Mathematical and animal models, and intervention studies suggest that contact transmission is the most important route in some scenarios. Infection prevention and control implications include the need for hand hygiene and personal protective equipment to minimize self-contamination and to protect against inoculation of mucosal surfaces and the respiratory tract, and enhanced surface cleaning and disinfection in healthcare settings. | |
| Přístup | 28. 5. 2020 13:35:19 | |
| Publikace | Journal of Hospital Infection | |
| Krátký název | Transmission of SARS and MERS coronaviruses and influenza virus in healthcare settings | |
| Jazyk | en | |
| Ročník | 92 | |
| Číslo | 3 | |
| Rozsah | 235-250 | |
| ISSN | 0195-6701 | |
| Katalog knihovny | ScienceDirect | |
| Zkrácený název časopisu | Journal of Hospital Infection | |
| DOI | 10.1016/j.jhin.2015.08.027 | |
| Select in Zotero | zotero://select/library/items/WPA83MVW | |
| Datum přidání | 28. 5. 2020 13:35:19 | |
| Upraveno | 5. 3. 2021 12:21:57 |
| Autor | Gin Nam Sze‐To | |
|---|---|---|
| Autor | Yang Yang | |
| Autor | Joseph K. C. Kwan | |
| Autor | Samuel C. T. Yu | |
| Autor | Christopher Y. H. Chao | |
| Typ | Článek v časopise | |
| Datum | 2014-05 | |
| Abstrakt | Infectious particles can be deposited on surfaces. Susceptible persons who contacted these contaminated surfaces may transfer the pathogens to their mucous membranes via hands, leading to a risk of respiratory infection. The exposure and infection risk contributed by this transmission route depend on indoor surface material, ventilation, and human behavior. In this study, quantitative infection risk assessments were used to compare the significances of these factors. The risks of three pathogens, influenza A virus, respiratory syncytial virus (RSV), and rhinovirus, in an aircraft cabin and in a hospital ward were assessed. Results showed that reducing the contact rate is relatively more effective than increasing the ventilation rate to lower the infection risk. Nonfabric surface materials were found to be much more favorable in the indirect contact transmission for RSV and rhinovirus than fabric surface materials. In the cases considered in this study, halving the ventilation rate and doubling the hand contact rate to surfaces and the hand contact rate to mucous membranes would increase the risk by 3.7–16.2%, 34.4–94.2%, and 24.1–117.7%, respectively. Contacting contaminated nonfabric surfaces may pose an indirect contact risk up to three orders of magnitude higher than that of contacting contaminated fabric surfaces. These findings provide more consideration for infection control and building environmental design. | |
| Přístup | 28. 5. 2020 7:57:12 | |
| Publikace | Risk Analysis | |
| Jazyk | en | |
| Ročník | 34 | |
| Číslo | 5 | |
| Rozsah | 818-830 | |
| Práva | © 2013 Society for Risk Analysis | |
| Extra | _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/risa.12144 | |
| ISSN | 1539-6924 | |
| Katalog knihovny | Wiley Online Library | |
| DOI | 10.1111/risa.12144 | |
| Select in Zotero | zotero://select/library/items/ACC28UBD | |
| Datum přidání | 28. 5. 2020 7:57:12 | |
| Upraveno | 5. 3. 2021 12:19:13 |
| Autor | Lisa Casanova | |
|---|---|---|
| Autor | William A. Rutala | |
| Autor | David J. Weber | |
| Autor | Mark D. Sobsey | |
| Typ | Článek v časopise | |
| Datum | 2010-05 | |
| Abstrakt | Epidemiologic studies of transmission of severe acute respiratory syndrome (SARS) in healthcare environments established a crucial role for personal protective equipment (PPE) in preventing the spread of SARS to healthcare workers.1 However, viruses can survive on PPE materials,2 suggesting that items of PPE may pose a risk of disease transmission if they become contaminated with infectious viruses and if virus transfer to hands occurs during handling. Healthcare workers and patients face emerging risks posed by coronaviruses and human-derived and non-human-derived influenza viruses (eg, novel H1N1 and avian H5N1 viruses) in healthcare settings. Data on the survival of enveloped viruses on PPE is important for assessing risks posed by handling of contaminated PPE and for making decisions regarding extended use or reuse of PPE in outbreak settings. This work was undertaken using a surrogate for SARS coronavirus, transmissible log10) was lost on an N95 respirator within the first 2 hours, and virus was detectable for up to 24 hours (loss of 3 log10). On gowns, TGEV was detectable for up to 24 hours, with a l-log,0 decrease over 2 hours and a ~3-log10 decrease by 24 hours. Virus was still detectable at 4 hours on scrub fabric. Survival on latex and nitrile gloves was comparable, with a 1.3-log10 decrease by 2 hours and a 2.5-log10 decrease by 4 hours. | |
| Přístup | 28. 5. 2020 8:36:48 | |
| Publikace | Infection Control & Hospital Epidemiology | |
| Jazyk | en | |
| Ročník | 31 | |
| Číslo | 5 | |
| Rozsah | 560-561 | |
| Extra | Publisher: Cambridge University Press | |
| ISSN | 1559-6834 | |
| Katalog knihovny | Cambridge University Press | |
| DOI | 10.1086/652452 | |
| Select in Zotero | zotero://select/library/items/FKBCVXCX | |
| Datum přidání | 28. 5. 2020 8:36:48 | |
| Upraveno | 5. 3. 2021 12:17:38 |
| Autor | Hector N. Valtierra | |
|---|---|---|
| Typ | Článek v časopise | |
| Datum | 2008-03-01 | |
| Abstrakt | Knowledge of the stability of pathogens in the environment is part of a comprehensive biological risk assessment. The inherent nature of laboratory equipment and laboratory procedures to create aerosolized droplets of infectious agents, with subsequent deposition of these particles, provides opportunities to contaminate fomites such as laboratory equipment and personal items. Vivaria create an increased level of virus amplification and fomite contamination as the dried waste of virus-infected research animals can become aerosolized, or transmitted through direct contact. This paper provides a review of studies in which several species of virus have been allowed to dry on porous, or nonporous substrates, and analyzed at timed intervals to determine the ranges over which these viruses remain stable at room temperature as measured by their viability to infect cell cultures or research animals. The research shows that some viruses retain viability for up to a month or longer in the laboratory environment. This review will aid investigators and biosafety professionals in both risk assessment as well as decontamination efforts. | |
| Přístup | 27. 5. 2020 14:38:27 | |
| Publikace | Applied Biosafety | |
| Jazyk | en | |
| Ročník | 13 | |
| Číslo | 1 | |
| Rozsah | 21-26 | |
| Extra | Publisher: SAGE Publications Inc | |
| ISSN | 1535-6760 | |
| Katalog knihovny | SAGE Journals | |
| Zkrácený název časopisu | Appl Biosaf. | |
| DOI | 10.1177/153567600801300104 | |
| Select in Zotero | zotero://select/library/items/3AXGIXDA | |
| Datum přidání | 27. 5. 2020 14:38:27 | |
| Upraveno | 5. 3. 2021 12:21:33 |
| Autor | Mary Y. Y. Lai | |
|---|---|---|
| Autor | Peter K. C. Cheng | |
| Autor | Wilina W. L. Lim | |
| Typ | Článek v časopise | |
| Datum | 2005-10-01 | |
| Abstrakt | Background. The primary modes of transmission of severe acute respiratory syndrome (SARS) coronavirus (SARS-CoV) appear to be direct mucus membrane contact with infectious droplets and through exposure to formites. Knowledge of the survival characteristics of the virus is essential for formulating appropriate infection-control measures. Methods. Survival of SARS-CoV strain GVU6109 was studied in stool and respiratory specimens. Survival of the virus on different environmental surfaces, including a laboratory request form, an impervious disposable gown, and a cotton nondisposable gown, was investigated. The virucidal effects of sodium hypochlorite, house detergent, and a peroxygen compound (Virkon S; Antec International) on the virus were also studied. Results. SARS-CoV GVU6109 can survive for 4 days in diarrheal stool samples with an alkaline pH, and it can remain infectious in respiratory specimens for >7 days at room temperature. Even at a relatively high concentration (104 tissue culture infective doses/mL), the virus could not be recovered after drying of a paper request form, and its infectivity was shown to last longer on the disposable gown than on the cotton gown. All disinfectants tested were shown to be able to reduce the virus load by >3 log within 5 min. Conclusions. Fecal and respiratory samples can remain infectious for a long period of time at room temperature. The risk of infection via contact with droplet-contaminated paper is small. Absorbent material, such as cotton, is preferred to nonabsorptive material for personal protective clothing for routine patient care where risk of large spillage is unlikely. The virus is easily inactivated by commonly used disinfectants. | |
| Přístup | 28. 5. 2020 8:34:37 | |
| Publikace | Clinical Infectious Diseases | |
| Jazyk | en | |
| Ročník | 41 | |
| Číslo | 7 | |
| Rozsah | 67-71 | |
| Extra | Publisher: Oxford Academic | |
| ISSN | 1058-4838 | |
| Katalog knihovny | academic.oup.com | |
| Zkrácený název časopisu | Clin Infect Dis | |
| DOI | 10.1086/433186 | |
| Select in Zotero | zotero://select/library/items/A5XGYKE9 | |
| Datum přidání | 28. 5. 2020 8:34:37 | |
| Upraveno | 5. 3. 2021 12:21:44 |
| Autor | Bruno A. Walther | |
|---|---|---|
| Autor | Paul W. Ewald | |
| Typ | Článek v časopise | |
| Datum | 2004-11 | |
| Abstrakt | Recent studies have provided evolutionary explanations for much of the variation in mortality among human infectious diseases. One gap in this knowledge concerns respiratory tract pathogens transmitted from person to person by direct contact or through environmental contamination. The sit-and-wait hypothesis predicts that virulence should be positively correlated with durability in the external environment because high durability reduces the dependence of transmission on host mobility. Reviewing the epidemiological and medical literature, we confirm this prediction for respiratory tract pathogens of humans. Our results clearly distinguish a high-virulence high-survival group of variola (smallpox) virus, Mycobacterium tuberculosis, Corynebacterium diphtheriae, Bordetella pertussis, Streptococcus pneumoniae, and influenza virus (where all pathogens have a mean percent mortality 0.01% and mean survival time >10 days) from a low-virulence low-survival group containing ten other pathogens. The correlation between virulence and durability explains three to four times of magnitude of difference in mean percent mortality and mean survival time, using both across-species and phylogenetically controlled analyses. Our findings bear on several areas of active research and public health policy: (1) many pathogens used in the biological control of insects are potential sit-and-wait pathogens as they combine three attributes that are advantageous for pest control: high virulence, long durability after application, and host specificity; (2) emerging pathogens such as the‘hospital superbug’methicillin-resistant Staphylococcus aureus (MRSA) and potential bioweapons pathogens such as smallpox virus and anthrax that are particularly dangerous can be discerned by quantifying their durability; (3) hospital settings and the AIDS pandemic may provide footholds for emerging sit-and-wait pathogens; and (4) studies on food-borne and insect pathogens point to future research considering the potential evolutionary trade-offs and genetic linkages between virulence and durability. | |
| Přístup | 28. 5. 2020 8:03:41 | |
| Publikace | Biological Reviews | |
| Jazyk | en | |
| Ročník | 79 | |
| Číslo | 4 | |
| Rozsah | 849-869 | |
| Extra | _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1017/S1464793104006475 | |
| ISSN | 1469-185X | |
| Katalog knihovny | Wiley Online Library | |
| DOI | 10.1017/S1464793104006475 | |
| Select in Zotero | zotero://select/library/items/JKUFP9R4 | |
| Datum přidání | 28. 5. 2020 8:03:41 | |
| Upraveno | 5. 3. 2021 12:19:46 |
| Autor | Shu-Ming Duan | |
|---|---|---|
| Autor | Xin-Sheng Zhao | |
| Autor | Rui-Fu Wen | |
| Autor | Jing-Jing Huang | |
| Autor | Guo-Hua Pi | |
| Autor | Su-Xiang Zhang | |
| Autor | Jun Han | |
| Autor | Sheng-Li Bi | |
| Autor | Li Ruan | |
| Autor | Xiao-Ping Dong | |
| Typ | Článek v časopise | |
| Datum | 2003-10-01 | |
| Abstrakt | The causal agent for SARS is considered as a novel coronavirus that has never been described both in human and animals previously. The stability of SARS coronavirus in human specimens and in environments was studied. Using a SARS coronavirus strain CoV-P9, which was isolated from pharyngeal swab of a probable SARS case in Beijing, its stability in mimic human specimens and in mimic environment including surfaces of commonly used materials or in household conditions, as well as its resistance to temperature and UV irradiation were analyzed. A total of 10(6) TCID50 viruses were placed in each tested condition, and changes of the viral infectivity in samples after treatments were measured by evaluating cytopathic effect (CPE) in cell line Vero-E6 at 48 h after infection. The results showed that SARS coronavirus in the testing condition could survive in serum, 1:20 diluted sputum and feces for at least 96 h, whereas it could remain alive in urine for at least 72 h with a low level of infectivity. The survival abilities on the surfaces of eight different materials and in water were quite comparable, revealing reduction of infectivity after 72 to 96 h exposure. Viruses stayed stable at 4 degrees C, at room temperature (20 degrees C) and at 37 degrees C for at least 2 h without remarkable change in the infectious ability in cells, but were converted to be non-infectious after 90-, 60- and 30-min exposure at 56 degrees C, at 67 degrees C and at 75 degrees C, respectively. Irradiation of UV for 60 min on the virus in culture medium resulted in the destruction of viral infectivity at an undetectable level. The survival ability of SARS coronavirus in human specimens and in environments seems to be relatively strong. Heating and UV irradiation can efficiently eliminate the viral infectivity. | |
| URL | https://www.researchgate.net/profile/Xiao_Ping_Dong/publication/8995908_Stability_of_SARS_Coronavirus_in_Human_Specimens_and_Environment_and_Its_Sensitivity_to_Heating_and_UV_Irradiation/links/5e2fa67f299bf10a6598fa29/Stability-of-SARS-Coronavirus-in-Human-Specimens-and-Environment-and-Its-Sensitivity-to-Heating-and-UV-Irradiation.pdf | |
| Publikace | Biomedical and environmental sciences : BES | |
| Ročník | 16 | |
| Rozsah | 246-55 | |
| Katalog knihovny | ResearchGate | |
| Zkrácený název časopisu | Biomedical and environmental sciences : BES | |
| Select in Zotero | zotero://select/library/items/FSVLPI8C | |
| Datum přidání | 28. 5. 2020 12:39:07 | |
| Upraveno | 12. 7. 2021 12:33:58 |