SARS-CoV-2 is rapidly inactivated at high temperature
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Published:2021-02-03
Issue:2
Volume:19
Page:1773-1777
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ISSN:1610-3653
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Container-title:Environmental Chemistry Letters
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language:en
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Short-container-title:Environ Chem Lett
Author:
Biryukov Jennifer, Boydston Jeremy A., Dunning Rebecca A., Yeager John J., Wood Stewart, Ferris Allison, Miller David, Weaver Wade, Zeitouni Nathalie E., Freeburger Denise, Dabisch Paul, Wahl Victoria, Hevey Michael C., Altamura Louis A.ORCID
Abstract
AbstractIn the absence of a vaccine, preventing the spread of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the primary means to reduce the impact of the 2019 coronavirus disease (COVID-19). Multiple studies have reported the presence of SARS-CoV-2 genetic material on surfaces suggesting that fomite transmission of SARS-CoV-2 is feasible. High temperature inactivation of virus has been previously suggested, but not shown. In the present study, we investigated the environmental stability of SARS-CoV-2 in a clinically relevant matrix dried onto stainless steel at a high temperature. The results show that at 54.5 °C, the virus half-life was 10.8 ± 3.0 min and the time for a 90% decrease in infectivity was 35.4 ± 9.0 min. These findings suggest that in instances where the environment can reach temperatures of at least 54.5 °C, such as in vehicle interior cabins when parked in warmer ambient air, that the potential for exposure to infectious virus on surfaces could be decreased substantially in under an hour.
Funder
U.S. Department of Homeland Security
Publisher
Springer Science and Business Media LLC
Subject
Environmental Chemistry
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