UK regulator chief on vaccine allergic reactions

UK regulators have had two reports of possible allergic reactions from people who took part in the first day of Britain's mass coronavirus vaccination program against COVID-19.

Dr. June Raine, head of the UK's medical regulatory agency, reported those reactions as she testified Wednesday to a Parliamentary committee.

The UK began vaccinating elderly people and medical workers with a vaccine developed by American drugmaker Pfizer and Germany's BioNTech on Tuesday, the world's first rollout of the vaccine.

“We're looking at two case reports of allergic reactions,’’ she said. “We know from the very extensive clinical trials that this wasn’t a feature.”