Adverse reactions to BNT162B2 vaccine in health care workers from an Italian Tertiary Care Hospital.

Keywords: adverse reactions; allergy; hypersensitivity reactions; Pfizer-BioNTech's BNT162B2 vaccine; polyethylene glycol; skin prick test EN adverse reactions allergy hypersensitivity reactions Pfizer-BioNTech's BNT162B2 vaccine polyethylene glycol skin prick test 911 915 5 07/11/22 20220701 NES 220701 Key messages The polyethylene glycol 2000 is the potential cause of allergic reactions to Pfizer-BionTech's BNT162B2. All 7 declared drug allergy history; 3/7 underwent an allergy evaluation before the first dose (two cases) or after an adverse reaction to the first dose (one case). Considering the completed Pfizer-BioNTech BNT162B2 vaccination cycle, 2.4% of Group I (7/290; I p i > .05 vs Group II) and 0.9% (9/1003) of Group II stated post-vaccination effects possibly connected to a hypersensitivity reaction after the first or the second dose of vaccine. [Extracted from the article]