Nine months after it first appeared, the virus shows little sign of abating
NINE MONTHS have passed since the first death from a mysterious virus in Wuhan, China. That virus, SARS-CoV-2, has now claimed the lives of 1m people around the world, according to a comprehensive tally by Johns Hopkins University. The number of people known to have been infected with covid-19 is estimated to be more than 33m.
The true tally of cases and deaths is likely to be higher still. Consider the results of serosurveys, which test for covid-19 antibodies in blood samples. Data gleaned from 279 such surveys administered in 19 countries suggest that somewhere between 500m and