Children and young people faced long-lasting and higher risks of rare heart and inflammatory complications after COVID-19 infection, compared to before or without an infection, according to new research. Meanwhile COVID-19 vaccination was only linked to a short-term higher risk of myocarditis and pericarditis.

The study is the largest of its kind in this population, and is published today in The Lancet Child and Adolescent Health. It was led by scientists at the Universities of Cambridge and Edinburgh, and University College London, with support from the British Heart Foundation (BHF) Data Science Centre at Health Data Research UK.