Senior doctors have asked England’s chief medical officer to halve the current 12-week gap between the first and second doses of the Pfizer-Biontech Covid-19 vaccine. The wait was originally three weeks but was then extended, a decision which Prof Chris Whitty said would double the number of people receiving jabs. But,
in a letter seen by the BBC, the British Medical Association said the delay was “difficult to justify”. It comes after the prime minister revealed the UK variant of Covid-19 may be more deadly.