Incidence and Estimated Vaccine Effectiveness Against Symptomatic SARS-CoV-2 Infection Among Persons Tested in US Retail Locations, May 1 to August 7, 2021.

Tabak, Ying P; Sun, Xiaowu; Brennan, Troyen A; Chaguturu, Sreekanth K · JAMA Netw Open · 2021

case_control · Level III

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Abstract

This case-control study evaluates the estimated vaccine effectiveness against infection changes over time to help inform public health policy and clinical practices.

Medical subject headings