| Autor: |
Campos RK, Jin J, Rafael GH, Zhao M, Liao L, Simmons G, Chu S, Weaver S, Chiu W, Cui Y |
| Jazyk: |
angličtina |
| Zdroj: |
MedRxiv : the preprint server for health sciences [medRxiv] 2020 Aug 14. Date of Electronic Publication: 2020 Aug 14. |
| DOI: |
10.1101/2020.08.10.20171728 |
| Abstrakt: |
In March of 2020, the World Health Organization declared a pandemic of coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The pandemic led to a shortage of N95-grade filtering facepiece respirators (FFRs), especially for protection of healthcare professionals against airborne transmission of SARS-CoV-2. We and others have previously reported promising decontamination methods that may be applied to the recycling and reuse of FFRs. In this study we tested disinfection of three viruses including SARS-CoV-2, dried on a piece of meltblown fabric, the principal component responsible for filtering of fine particles in N95-level FFRs, under a range of temperatures (60-95°C) at ambient or 100% relative humidity (RH) in conjunction with filtration efficiency testing. We found that heat treatments of 75°C for 30 min or 85°C for 20 min at 100% RH resulted in efficient decontamination from the fabric of SARS-CoV-2, human coronavirus NL63 (HCoV-NL63) and chikungunya virus vaccine strain 181 (CHIKV-181), without lowering the meltblown fabric's filtration efficiency. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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