From the Guardian article on child mortality with covid
www.theguardian.com/world/2021/jul/09/first-year-of-pandemic-claimed-lives-of-25-youngsters-in-england
Not data - but interesting
"The studies did not assess the risk of “long Covid” in under 18s. However, speaking at a separate online seminar organised by the Royal Society of Medicine, one of the country’s leading experts on the condition in children and young people warned that a “tidal wave” of long Covid infections among teens was on the way.
Esther Crawley, a professor of child health at the University of Bristol, said that some frontline doctors were in denial about long Covid in children. “Parents and children are going to their GPs to try to seek help and being turned away.” She also said that her direct experience studying the condition had convinced her that children over the age of 12 should now be vaccinated.
The scale of the problem was also emphasised by Nathalie MacDermott, a doctor and clinical lecturer in paediatrics at King’s College London, who warned of shortages of paediatric resources to cope with it. “We are talking several thousand children, young people and young adults suffering ongoing symptoms. It could be detrimental to their education and, later on, to our economy, not least since we do not have enough paediatricians in this country to manage.”"