Evolving virulence? Decreasing COVID-19 complications among Massachusetts healthcare workers: a cohort study

Pathog Glob Health. 2021 Feb;115(1):4-6. doi: 10.1080/20477724.2020.1847778. Epub 2020 Nov 14.
No abstract available

Keywords: SARS-CoV-2; emerging; epidemiology; evolution; fatality; headache; hospitalization; occupational health; potency.

MeSH terms

  • Adult
  • Biological Evolution
  • COVID-19 / complications*
  • COVID-19 / virology*
  • Cohort Studies
  • Female
  • Health Personnel*
  • Humans
  • Male
  • Massachusetts / epidemiology
  • Middle Aged
  • SARS-CoV-2 / genetics*
  • SARS-CoV-2 / pathogenicity*
  • Virulence
  • Young Adult