Antimicrobial Stewardship & Healthcare Epidemiology (Jan 2022)

Coronavirus disease 2019 (COVID-19) vaccine breakthrough infections among healthcare personnel, December 2020–April 2021

  • Katelin B. Nickel,
  • Victoria J. Fraser,
  • Hilary M. Babcock,
  • Jennie H. Kwon,
  • for the CDC Prevention Epicenters Program

DOI
https://doi.org/10.1017/ash.2022.299
Journal volume & issue
Vol. 2

Abstract

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Coronavirus disease 2019 (COVID-19) vaccine effectiveness in the early months of vaccine availability was high among healthcare personnel (HCP) at 88.3% for 2-doses. Among those testing positive for severe acute respiratory coronavirus virus 2 (SARS-CoV-2), those with breakthrough infection after vaccination were more likely to have had a non–work-related SARS-CoV-2 exposure compared to unvaccinated HCP.