Britain may already be beginning to reap the benefits of its Covid booster vaccine drive, according to official data that will pile more pressure on ministers to accelerate the sluggish programme in the face of rising cases and the new Delta variant.
Over-85s — who were among the first in line for their top-ups — have seen the biggest slowdown in the growth of cases, in what scientists believe is the ‘early signs’ of the revaccination campaign kicking in.
Experts