The pandemic has spawned a new way to study medical records

ON MAY 7THSARSCVThe EconomistThe Economist Today an article appeared on medRxiv, an online repository for medical research. It showed, for England at least, the degrees to which -o-2, the virus that causes covid-19, discriminates in its deadliness between various groups of people. Men are more likely to die than women. The old and the socially deprived more likely than the young, well-off and well-connected. Those with uncontrolled diabetes or severe asthma, more likely than those without. And members of the country’s ethnic minorities more likely than those of its white majority.