The Pfizer and AstraZeneca vaccines being given to millions of people in the UK by the NHS are extremely safe, with some mild expected side-effects, says the country’s drugs regulator.

It assessed safety reports from nearly seven million doses given up to 24 January – mostly with the Pfizer jab.
Some 22,820 suspected reactions were reported. Around three in every 1,000 people vaccinated were affected.
Almost all cases were mild, such as a sore arm or flu-like illness.

Covid vaccines extremely safe, finds UK regulator – BBC News