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Experimental aerosol survival of SARS-CoV-2 in artificial saliva and tissue culture media at medium and high humidity
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Experimental aerosol survival of SARS-CoV-2 in artificial saliva and tissue culture media at medium and high humidity
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Journal Article
Experimental aerosol survival of SARS-CoV-2 in artificial saliva and tissue culture media at medium and high humidity
2020
Overview
SARS-CoV-2, the causative agent of the COVID-19 pandemic, may be transmitted via airborne droplets or contact with surfaces onto which droplets have deposited. In this study, the ability of SARS-CoV-2 to survive in the dark, at two different relative humidity values and within artificial saliva, a clinically relevant matrix, was investigated. SARS-CoV-2 was found to be stable, in the dark, in a dynamic small particle aerosol under the four experimental conditions we tested and viable virus could still be detected after 90 minutes. The decay rate and half-life was determined and decay rates ranged from 0.4 to 2.27 % per minute and the half lives ranged from 30 to 177 minutes for the different conditions. This information can be used for advice and modelling and potential mitigation strategies.
Publisher
Taylor & Francis,Taylor & Francis Ltd,Taylor & Francis Group
Subject
/ Aerosols
/ Betacoronavirus - growth & development
/ Betacoronavirus - radiation effects
/ Coronavirus Infections - transmission
/ Coronavirus Infections - virology
/ COVID-19
/ Darkness
/ Humans
/ Humidity
/ Kinetics
/ Letter
/ Pneumonia, Viral - transmission
/ saliva
/ Saliva, Artificial - chemistry
/ Severe acute respiratory syndrome coronavirus 2
/ survival
