The Center for Disease Control (CDC) announced a lower rate of severe allergic reactions in people vaccinated with the Pfizer/BioNTech coronavirus vaccine. The CDC reported that through January 18, 2021, there were 50 cases of anaphylaxis reported in recipients of the vaccine, implying a rate of about 5 per million doses administered. This is significantly lower than the previously reported rate of 11.1 per million doses administered through December 23, 2020.
