Symptomatic and Asymptomatic Transmission of SARS-CoV-2 in K-12 Schools, British Columbia, Canada April to June 2021 Academic Article uri icon

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  • There is concern that schools may be a setting where asymptomatic infections might result in significant “silent” transmission of SARS-CoV-2, particularly after the emergence of more transmissible variants of concern. After the programmatic implementation of a strategy of asymptomatic testing of close COVID-19 contacts as part of contact tracing in the school setting, the majority of the secondary cases were still found to have occurred in home or social contacts.


  • Choi, Alexandra
  • Mâsse, Louise C
  • Bardwell, Samantha
  • Kayda, Iryna
  • Zhao, Yanjie
  • Xu, Yang Xin Zi
  • Markarian, Ani
  • Coombs, Daniel
  • Macdonald, Adrienne
  • Watts, Allison W
  • Dhillon, Nalin
  • Irvine, Michael
  • O’Reilly, Collette
  • Lavoie, Pascal M
  • Goldfarb, David

publication date

  • August 31, 2022