The UK medical regulator has advised that individuals with a significant history of allergies should not receive the Pfizer/BioNTech coronavirus vaccine.
The warning follows news that two NHS staff who received the Covid-19 shot on Monday experienced an allergic reaction shortly after.
The regulator is looking into the two reports of allergic reactions, June Raine, chief executive for the MHRA, said on Tuesday at a UK parliamentary committee.
She said: “We know from the very extensive clinical trials that this wasn’t a feature but if we need to strengthen our advice . . . we get that advice to the field immediately.”
Dr Raine also revealed that she and Professor Chris Whitty, chief medical officer for England, discussed the issue last night.
Professor Stephen Powis, national medical director for the NHS in England, said: “As is common with new vaccines the MHRA have advised on a precautionary basis that people with a significant history of allergic reactions do not receive this vaccination after two people with a history of significant allergic reactions responded adversely yesterday. Both are recovering well.”