Could 30 per cent of Brits have some Covid immunity?
How big is the job of vaccination? The aim is herd immunity, to protect enough people so that the virus starts to run out of people to infect and rates fall. This is expected to happen when between 60 to 80 per cent of the population is protected, so quite a job for the NHS. Until this is achieved, ministers seek to use lockdown as a tool to keep the R below 1. This means the cycle of lockdown and release could be with us for some time, especially in light of the new ‘mutant’ strain of the virus. But are ministers seeing the whole picture? As a professor of
