this probably isn’t the main way it is spreading

this probably isn’t the main way it is spreading, the WHO says. (However, one non-peer-reviewed article this week also suggests that coronavirus patients are shedding huge amounts of the virus in these early stages, when they have either no symptoms or just mild ones.) The flu virus typically sheds in the first two days after symptoms start, and this can last for up to a week. But a study in the Lancet this week, which looked at patients in China, showed that survivors were still shedding the coronavirus for around 20 days (or until death). One was still shedding at 37 days, while the shortest time detected was eight days. This suggests coronavirus patients remain contagious for much longer than those with flu.