Aerosol transmission of SARS-CoV-2 by children and adults during the COVID-19 pandemic

Pediatr Pulmonol. 2021 Jun;56(6):1389-1394. doi: 10.1002/ppul.25330. Epub 2021 Mar 15.


Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can be transmitted via respiratory droplets, aerosols, and to a lesser extent, fomites. Defining the factors driving infectivity and transmission is critical for infection control and containment of this pandemic. We outline the major methods of transmission of SARS-CoV-2, focusing on aerosol transmission. We review principles of aerosol science and discuss their implications for mitigating the spread of SARS-CoV-2 among children and adults.

Keywords: COVID-19; SARS-CoV-2; aerosol; face mask; transmission.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Adult
  • Aerosols
  • COVID-19 / epidemiology*
  • COVID-19 / prevention & control
  • COVID-19 / transmission*
  • Child
  • Fomites
  • Humans
  • Infection Control
  • Pandemics*
  • SARS-CoV-2*


  • Aerosols