Interim Estimates of Vaccine Effectiveness of BNT162b2 and mRNA-1273 COVID-19 Vaccines in Preventing SARS-CoV-2 Infection Among Health Care Personnel, First Responders, and Other Essential and Frontline Workers - Eight U.S. Locations, December 2020-Mar...

Apr 01, 2021
mRNA COVID-19 vaccine effectiveness against SARS-CoV-2 infection was 90% for full immunization (≥14 days after second dose) and 80% for partial immunization (≥14 days after first dose but before second dose) in real-world conditions.

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