Apparently the reduction in infection numbers has nothing to do with the vaccination programme but is instead due to a successful lockdown:
PM did indeed say that
and as ever the data out there will confirm or deny
we have had three down strokes of the waves.
and vacc was introduced in Jan 21 - so uf there is a kink down ( cliff or edge ) in that then vacc is responsible and you can tell from the down stroke gradient what its contribution was
this wave - the down stroke is at a different angle ( more steep) and the degree of that compared - to previous down strokes will again quantify the effect of vacca
it is not rocket science as einstein once said