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Airborne SARS-CoV-2 Is Rapidly Inactivated by Simulated Sunlight.
Schuit, Michael; Ratnesar-Shumate, Shanna; Yolitz, Jason; Williams, Gregory; Weaver, Wade; Green, Brian; Miller, David; Krause, Melissa; Beck, Katie; Wood, Stewart; Holland, Brian; Bohannon, Jordan; Freeburger, Denise; Hooper, Idris; Biryukov, Jennifer; Altamura, Louis A; Wahl, Victoria; Hevey, Michael; Dabisch, Paul.
  • Schuit M; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Ratnesar-Shumate S; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Yolitz J; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Williams G; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Weaver W; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Green B; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Miller D; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Krause M; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Beck K; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Wood S; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Holland B; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Bohannon J; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Freeburger D; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Hooper I; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Biryukov J; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Altamura LA; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Wahl V; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Hevey M; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
  • Dabisch P; National Biodefense Analysis and Countermeasures Center, Operated by Battelle National Biodefense Institute for the US Department of Homeland Security Science and Technology Directorate, Frederick, Maryland, USA.
J Infect Dis ; 222(4): 564-571, 2020 07 23.
Article in English | MEDLINE | ID: covidwho-593364
ABSTRACT
Aerosols represent a potential transmission route of COVID-19. This study examined effect of simulated sunlight, relative humidity, and suspension matrix on stability of SARS-CoV-2 in aerosols. Simulated sunlight and matrix significantly affected decay rate of the virus. Relative humidity alone did not affect the decay rate; however, minor interactions between relative humidity and other factors were observed. Mean decay rates (± SD) in simulated saliva, under simulated sunlight levels representative of late winter/early fall and summer were 0.121 ±â€…0.017 min-1 (90% loss, 19 minutes) and 0.306 ±â€…0.097 min-1 (90% loss, 8 minutes), respectively. Mean decay rate without simulated sunlight across all relative humidity levels was 0.008 ±â€…0.011 min-1 (90% loss, 286 minutes). These results suggest that the potential for aerosol transmission of SARS-CoV-2 may be dependent on environmental conditions, particularly sunlight. These data may be useful to inform mitigation strategies to minimize the potential for aerosol transmission.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Pneumonia, Viral / Sunlight / Coronavirus Infections / Air Microbiology / Betacoronavirus Limits: Animals Language: English Journal: J Infect Dis Year: 2020 Document Type: Article Affiliation country: Infdis

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Pneumonia, Viral / Sunlight / Coronavirus Infections / Air Microbiology / Betacoronavirus Limits: Animals Language: English Journal: J Infect Dis Year: 2020 Document Type: Article Affiliation country: Infdis