“There is no virus,” read one of the placards at a recent anti-vax protest held, of all places, near Cape Town’s Groote Schuur Hospital, as doctors and nurses inside this famous health facility battled to save lives ravaged by coronavirus infections. More than 79,421 dead, but there is no virus. “I am not a lab rat,” read another. Trust me, the fact that the American Food and Drug Administration (FDA) this week fully approved Pfizer’s Covid-19 vaccine will do nothing to change made-up minds...