Allergic Reactions Including Anaphylaxis After Receipt of the First Dose of Pfizer-BioNTech COVID-19 Vaccine — United States December 14–23 2020
CDC COVID-19 Response Team and U.S. Food and Drug Administration.
(2021).
Allergic Reactions Including Anaphylaxis After Receipt of the First Dose of Pfizer-BioNTech COVID-19 Vaccine — United States, December 14–23, 2020.
(Added 1/11/2021.) Morbidity and Mortality Weekly Report. 70..
This report details initial reports of adverse events following administration of the first dose of the Pfizer-BioNTech vaccine. Between December 14 and 23, 2020, 21 cases of anaphylaxis were reported following administration of 1,893,360 doses of vaccine.
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