Looking at the recent depressing stats on long covid (prevalent symptoms after five weeks), does anyone know if there's a split on severity of symptoms of long covid? E.g. some people experience covid as a "cold", some are ventilated, some are then literally off their feet for weeks and weeks. Is there more of a breakdown anywhere? Also, is anyone aware of other figures, e.g. percentage of people who have long covid after ten weeks, twenty weeks etc?