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Symptomatic and asymptomatic transmission of SARS-CoV-2 in K-12 schools, British Columbia, April to June 2021
Alex Choi; Louise Masse; Samantha Bardwell; Yanjie Zhao; Yang Xin Zi Xu; Ani Markarian; Daniel Coombs; Allison Watts; Adrienne Macdonald; Nalin Dhillon; Michael Irvine; Collette O'Reilly; Pascal M. Lavoie; David M. Goldfarb.
Afiliação
  • Alex Choi; Vancouver Coastal Health, Vancouver, BC, Canada
  • Louise Masse; BC Childrens Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
  • Samantha Bardwell; University of British Columbia, Vancouver, BC, Canada
  • Yanjie Zhao; Vancouver Coastal Health, Vancouver, BC, Canada
  • Yang Xin Zi Xu; Vancouver Coastal Health, Vancouver, BC, Canada
  • Ani Markarian; Vancouver Coastal Health, Vancouver, BC, Canada
  • Daniel Coombs; University of British Columbia, Vancouver, BC, Canada
  • Allison Watts; Department of Pediatrics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
  • Adrienne Macdonald; Vancouver Coastal Health, Vancouver, BC, Canada
  • Nalin Dhillon; Vancouver Coastal Health, Vancouver, BC, Canada
  • Michael Irvine; British Columbia Centre for Disease Control, Vancouver, BC, Canada
  • Collette O'Reilly; Vancouver School District, Vancouver, BC, Canada
  • Pascal M. Lavoie; BC Childrens Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
  • David M. Goldfarb; BC Childrens Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
Preprint em Inglês | medRxiv | ID: ppmedrxiv-21266284
ABSTRACT
We prospectively studied SARS-CoV-2 transmission at schools in an era of Variants of Concern (VoCs), offering all close contacts serial viral asymptomatic testing up to 14 days. Of 229 school close contacts, 3 tested positive (1.3%), of which 2 were detected through asymptomatic testing. Most secondary transmission (90%) occurred in households. Routine asymptomatic testing of close contacts should be examined in the context of local testing rates, preventive measures, programmatic costs, and health impacts of asymptomatic transmission.
Licença
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Texto completo: Disponível Coleções: Preprints Base de dados: medRxiv Idioma: Inglês Ano de publicação: 2021 Tipo de documento: Preprint
Texto completo: Disponível Coleções: Preprints Base de dados: medRxiv Idioma: Inglês Ano de publicação: 2021 Tipo de documento: Preprint
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