Comparative dynamic aerosol efficiencies of three emergent coronaviruses and the unusual persistence of SARS-CoV-2 in aerosol suspensions

  1. A.C. Fears
  2. W.B. Klimstra
  3. P. Duprex
  4. A. Hartman
  5. S.C. Weaver
  6. K.C. Plante
  7. D. Mirchandani
  8. J.A. Plante
  9. P.V. Aguilar
  10. D. Fernández
  11. A. Nalca
  12. A. Totura
  13. D. Dyer
  14. B. Kearney
  15. M. Lackemeyer
  16. J.K. Bohannon
  17. R. Johnson
  18. R.F. Garry
  19. D.S. Reed
  20. C.J. Roy
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Abstract

The emergent coronavirus, designated severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), is a zoonotic pathogen that has demonstrated remarkable transmissibility in the human population and is the etiological agent of a current global pandemic called COVID-19 1 . We measured the dynamic (short-term) aerosol efficiencies of SARS-CoV-2 and compared the efficiencies with two other emerging coronaviruses, SARS-CoV (emerged in 2002) and Middle Eastern respiratory syndrome CoV (MERS-CoV; emerged starting in 2012). We also quantified the long-term persistence of SARS-CoV-2 and its ability to maintain infectivity when suspended in aerosols for up to 16 hours.

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