News > UK Issues Anaphylaxis Warning On Pfizer Vaccine After Adverse Reactions

UK Issues Anaphylaxis Warning On Pfizer Vaccine After Adverse Reactions

Britain’s medicine regulator said anyone with a history of anaphylaxis to medicine or food should not get the Pfizer-BioNTech COVID-19 vaccine. Anaphylaxis is an overreaction of the body’s immune system, which the National Health Service describes as severe and sometimes life-threatening.

“Most people will not get anaphylaxis. You can be completely confident that this vaccine has met the MHRA’s robust standards of safety, quality and effectiveness,” MHRA Chief Executive June Raine said in a statement.