This virus is so easily transmitted that one needs a significant percentage of the population to be resistant before new epidemics won’t happen every time it is

This virus is so easily transmitted that one needs a significant percentage of the population to be resistant before new epidemics won’t happen every time it is reintroduced. So 60-70%. With a little luck there’s a still larger group of asymptotic infections, because otherwise we are going to have to put up with large numbers of ICU patients for a long time.