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The transmission of SARS-CoV-2 is likely comodulated by temperature and by relative humidity.

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  • Author(s): Raines KS;Raines KS; Doniach S; Doniach S; Bhanot G; Bhanot G; Bhanot G; Bhanot G; Bhanot G
  • Source:
    PloS one [PLoS One] 2021 Jul 29; Vol. 16 (7), pp. e0255212. Date of Electronic Publication: 2021 Jul 29 (Print Publication: 2021).
  • Publication Type:
    Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE
    • Publication Information:
      Original Publication: San Francisco, CA : Public Library of Science
    • Subject Terms:
      COVID-19/*transmission ; SARS-CoV-2/*pathogenicity; COVID-19/virology ; Climate ; Colombia ; Humans ; Humidity ; Pandemics/prevention & control ; Temperature ; Weather
    • Abstract:
      Inferring the impact of climate upon the transmission of SARS-CoV-2 has been confounded by variability in testing, unknown disease introduction rates, and changing weather. Here we present a data model that accounts for dynamic testing rates and variations in disease introduction rates. We apply this model to data from Colombia, whose varied and seasonless climate, central port of entry, and swift, centralized response to the COVID-19 pandemic present an opportune environment for assessing the impact of climate factors on the spread of COVID-19. We observe strong attenuation of transmission in climates with sustained daily temperatures above 30 degrees Celsius and simultaneous mean relative humidity below 78%, with outbreaks occurring at high humidity even where the temperature is high. We hypothesize that temperature and relative humidity comodulate the infectivity of SARS-CoV-2 within respiratory droplets.
      Competing Interests: The authors have declared that no competing interests exist.
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    • Grant Information:
      R01 CA243547 United States CA NCI NIH HHS; 1R01 CA243547-01A1 United States NH NIH HHS
    • Publication Date:
      Date Created: 20210729 Date Completed: 20210806 Latest Revision: 20231107
    • Publication Date:
      20240105
    • Accession Number:
      PMC8321224
    • Accession Number:
      10.1371/journal.pone.0255212
    • Accession Number:
      34324570