Three milestones were announced last week in Britain’s bid to beat the coronavirus: zero Covid deaths were reported on Tuesday, three-quarters of adults had received a first dose by Wednesday, and half of all adults had been fully jabbed by Thursday.
Yet, at the same time, doubts are increasing among scientists and politicians that the remaining social restrictions should end as scheduled on June 21, so-called Freedom Day. So why, with vaccination going so well, are we still in a pandemic? The answer, as ever, lies in the numbers.
New variant, new danger
Our current rules on social distancing, combined with immunity in the population, might have been enough to control the original virus and even the more infectious Kent variant. Unfortunately, the Indian
