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As vaccines to protect against COVID-19 continue to roll out across the United States, the Centers for Disease Control and Prevention has documented a small number of reports of severe allergic reactions from some recipients. A report from the CDC, published Wednesday (January 6) in the agency’s Morbidity and Mortality Weekly Report, finds that most of these rare events occurred in those with a history of allergic reactions.
As of December 23, nearly 1.9 million doses of Pfizer-BioNTech’s vaccine had been administered across the country, according to the report, with 21 verified cases of anaphylaxis that followed, a rate of 11.1 per million doses. Four of the individuals did not have a medical history of severe allergic reactions. Among those who did, seven had experienced anaphylaxis in the past. Epinephrine, the drug used in Epi-Pens, was given to 19 of the patients, and four were admitted ...
