The institute also reported six anaphylaxis cases. So far, there have been 325 cases of side-effects allegedly related to the vaccine, including 51 severe ones. Keller-Stanislawski stated that those results are within expectations and correspond to the US vaccination statistics. 

Official reports of allergic reactions have been rare as governments rush to roll out vaccines to try to contain the global pandemic. U.S. authorities reported 21 cases of severe allergic reactions from Dec. 14-23 after administration of about 1.9 million initial doses of the Pfizer vaccine. The first Europe-wide safety report on the Pfizer-BioNTech vaccine is due to be published at the end of January.