Extrapolating figures around long Covid in kids is not the way to go15 March 2021What was claimed 74,000 children are living with ‘long Covid’. Given all of these unknowns, we need to be cautious of claims about exactly how many children have long Covid. Nuffield Professor of Child Health and Honorary Consultant Paediatrician, Sir Terence Stephenson, is leading a research project into long Covid in teenagers. He told Full Fact:“I would be very wary of putting a figure on how common long COVID is in young people. “Because there is no diagnostic test or code for long COVID, it may not be captured in routine NHS administrative datasets.