by Olivier THIBAULT Agence France Presse The global death toll from Covid-19, which is set to pass five million, is already far worse than most other viral epidemics of the 20th and 21st centuries. But there have been notable exceptions. The post-World War I Spanish Flu wiped out more than 50 million people in 1918-19, according to some estimates. That is far more than the coronavirus pandemic, even if — as the World Health […]