COVID vaccines are extremely effective, but none 100 per cent so. This itself isn’t surprising – flu vaccines aren’t 100 per cent effective either.
Yet in the US alone flu vaccines are estimated to prevent millions of cases of illness, tens of thousands of hospitalisations and thousands of deaths every year.
The COVID vaccines are doing the same in the UK right now – all one has to do is compare the curves from the winter wave with those from this summer.
As cases are rising, hospitalisations and deaths are rising too, but not at anywhere near the same level as they were in the winter.