‘Worrying development’ as ‘mutation of concern’ seen in UK coronavirus variant

Scientists have discovered a ‘mutation of concern’ in the UK variant of coronavirus (Andrew Matthews/PA)

A “mutation of concern” has been detected in the UK variant of coronavirus, which scientists have described as “a worrying development”.

This mutation, known as E484K, is already present in both South African and Brazilian coronavirus variants and experts believe it could have an impact on the effectiveness of some Covid-19 vaccines.