Asymptomatic and Symptomatic COVID-19 Infections Among Health Care Personnel Before and After Vaccination.

Gohil, Shruti K; Olenslager, Keith; Quan, Kathleen A; Dastur, Cyrus K; Afsar, Nasim; Chang, Wayne; Huang, Susan S · JAMA Netw Open · 2021

prospective_cohort · Level II

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Abstract

This cohort study investigates asymptomatic and symptomatic COVID-19 case rates before and after the initial vaccine rollout among health care personnel in Orange County, California.

Medical subject headings