Severe Acute Respiratory Syndrome Coronavirus 2 among Asymptomatic Workers Screened for Work Resumption, China

Emerg Infect Dis. 2020 Sep;26(9):2265-2267. doi: 10.3201/eid2609.201848. Epub 2020 Jun 17.

Abstract

After the outbreak in Wuhan, China, we assessed 29,299 workers screened for severe acute respiratory syndrome coronavirus 2 by reverse transcription PCR. We noted 18 (0.061%) cases of asymptomatic infection; 13 turned negative within 8.0 days, and 41 close contacts tested negative. Among 6 contacts who had serologic tests, none were positive.

Keywords: COVID-19; China; SARS; SARS-CoV-2; Wuhan; coronavirus; coronavirus disease; respiratory infections; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.

Publication types

  • Letter

MeSH terms

  • Adult
  • Antibodies, Viral / blood*
  • Asymptomatic Infections / epidemiology*
  • Betacoronavirus / immunology*
  • COVID-19
  • COVID-19 Testing
  • China / epidemiology
  • Clinical Laboratory Techniques*
  • Coronavirus Infections / diagnosis*
  • Coronavirus Infections / epidemiology
  • Coronavirus Infections / virology
  • Female
  • Humans
  • Male
  • Middle Aged
  • Pandemics
  • Pneumonia, Viral / diagnosis*
  • Pneumonia, Viral / epidemiology
  • Pneumonia, Viral / virology
  • Return to Work / statistics & numerical data*
  • SARS-CoV-2

Substances

  • Antibodies, Viral