In a large cohort of United States healthcare personnel without prior coronavirus disease 2019 (COVID-19) infection, 94 382 doses of messenger RNA (mRNA) COVID-19 vaccine were administered to 49 220 individuals. The adjusted vaccine effectiveness following 2 doses of each of the 2 available brands of mRNA vaccine exceeded 96%.
CITATION STYLE
Swift, M. D., Breeher, L. E., Tande, A. J., Tommaso, C. P., Hainy, C. M., Chu, H., … Virk, A. (2021). Effectiveness of Messenger RNA Coronavirus Disease 2019 (COVID19) Vaccines Against Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infection in a Cohort of Healthcare Personnel. Clinical Infectious Diseases, 73(6), E1376–E1379. https://doi.org/10.1093/cid/ciab361
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