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      Estimated Inactivation of Coronaviruses by Solar Radiation With Special Reference to COVID‐19

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          Abstract

          Using a model developed for estimating solar inactivation of viruses of biodefense concerns, we calculated the expected inactivation of SARS‐CoV‐2 virus, cause of COVID‐19 pandemic, by artificial UVC and by solar ultraviolet radiation in several cities of the world during different times of the year. The UV sensitivity estimated here for SARS‐CoV‐2 is compared with those reported for other ssRNA viruses, including influenza A virus. The results indicate that SARS‐CoV‐2 aerosolized from infected patients and deposited on surfaces could remain infectious outdoors for considerable time during the winter in many temperate‐zone cities, with continued risk for re‐aerosolization and human infection. Conversely, the presented data indicate that SARS‐CoV‐2 should be inactivated relatively fast (faster than influenza A) during summer in many populous cities of the world, indicating that sunlight should have a role in the occurrence, spread rate, and duration of coronavirus pandemics.

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          Author and article information

          Contributors
          gripan889@gmail.com
          Journal
          Photochem Photobiol
          Photochem. Photobiol
          10.1111/(ISSN)1751-1097
          PHP
          Photochemistry and Photobiology
          John Wiley and Sons Inc. (Hoboken )
          0031-8655
          1751-1097
          05 June 2020
          : 10.1111/php.13293
          Affiliations
          [ 1 ] US Department of Defense Ringgold Standard Institution‐US Army RETIRED Maryland United States
          [ 2 ] Department of Health and Human Services Ringgold Standard Institution ‐ Food and Drug Administration RETIRED New Mexico United States
          Author notes
          [*] [* ] Corresponding author

          Email: gripan889@ 123456gmail.com (Jose‐Luis Sagripanti)

          Author information
          https://orcid.org/0000-0002-3952-5838
          Article
          PHP13293
          10.1111/php.13293
          7300806
          32502327
          4f089f9c-b3da-4014-9ff4-419f1c3afd7f
          This article is protected by copyright. All rights reserved.

          This article is being made freely available through PubMed Central as part of the COVID-19 public health emergency response. It can be used for unrestricted research re-use and analysis in any form or by any means with acknowledgement of the original source, for the duration of the public health emergency.

          History
          Page count
          Figures: 0, Tables: 0, Pages: 26, Words: 303
          Categories
          Rapid Communication
          Rapid Communication
          Custom metadata
          2.0
          accepted-manuscript
          Converter:WILEY_ML3GV2_TO_JATSPMC version:5.8.4 mode:remove_FC converted:18.06.2020

          sars‐cov‐2,covid‐19,coronaviruses,influenza,virus inactivation,solar radiation,photobiology,uv radiation,antiviral effect

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