November 16, 2021, Vol 326, No. 19, Pages 1891-1983
Association of Prior SARS-CoV-2 Infection With Risk of Breakthrough Infection Following mRNA Vaccination in Qatar
Laith J. Abu-Raddad, PhD; Hiam Chemaitelly, MSc; Houssein H. Ayoub, PhD; et al.
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JAMA. 2021;326(19):1930-1939. doi:10.1001/jama.2021.19623
This cohort study assesses protection from SARS-CoV-2 breakthrough infection after mRNA vaccination among persons with vs without prior SARS-CoV-2 infection.