Covid-19 vaccine: Allergy warning over Pfizer Covid jab

People with a “significant history of allergic reactions” should not be given the Pfizer/BioNTech coronavirus vaccine, UK health authorities said Wednesday, after two health care workers experienced symptoms after receiving a shot the day before.

The precautionary advice was given after the pair “responded adversely” following their shots on the first day of the mass vaccination rollout in the UK, National Health Service England said Wednesday.

The two staff members — who both carried an adrenaline auto injector and had a history of allergic reactions — developed symptoms of anaphylactoid reaction after receiving the vaccine on Tuesday. Thousands overall were vaccinated in the UK on Tuesday, NHS England told CNN on Wednesday. (CNN)