‘Lasting Covid effects uncommon in children, with most recovered in a week’ 03/08/2021, 11:33 pm Long-lasting effects of Covid are not common in children, according to research from King’s College London (Nick Ansell/PA Wire) Children who become ill with coronavirus are unlikely to have long-term effects, with less than 2% having symptoms lasting more than eight weeks, research has shown. Illness from Covid-19 lasted no more than a week on average in people aged between five and 17, according to findings from a study led by researchers at King’s College London. The results, published in the Lancet Child and Adolescent Health journal, involved scientists looking at daily health reports logged in the Zoe Covid Study app and focused on September 2020 through to February 2021.