Experts now say that even 70 per cent immunity in the population isn’t high enough to resist the spread of the Delta variant. A recent study in The Lancet says, “With the elevated transmissibility of circulating variants, vaccination coverages as…
People who have had COVID-19 are highly likely to have immunity from it for at least five months, but there is evidence that those with antibodies may still be able to carry and spread the virus, a study of British…