FDA releases fact sheet on side effects, possible allergic reactions to Pfizer vaccine

Injections of the Pfizer/BioNtech covid-19 vaccine are pictured at GP led clinic in Chalfont St Peter, Buckinghamshire, as hundreds of Covid-19 vaccination centres run by local doctors begin opening across England, on December 14, 2020 in Chalfont St Peter, England. (Photo by Steve Parsons - WPA Pool/Getty Images)