Less than 1 in 20 children with COVID-19 have symptoms lasting longer than 4 weeks, and by 8 weeks, almost all have recovered, according to a study yesterday in The Lancet Child & Adolescent Health."We know from other studies that many children who catch coronavirus don't show any symptoms at all; and it will be reassuring for families to know that those children who do fall ill with COVID-19 are unlikely to suffer prolonged effects," said senior author Emma Duncan, PhD, in a King's College London press release."However, our research confirms that a small number do have a long illness duration with COVID-19, though these children too usually recover with time," she added.