“…6,[9][10][11] Previous reports suggest age, obesity, type 1 diabetes, genetic disorders, immunosuppression, chronic pulmonary disease, and Latino, Hispanic, or Black racial or ethnic identification may place paediatric and young adult patients at higher risk for more severe illness and hospitalisation. 7,[10][11][12][13][14][15] While clinical evidence suggests that underlying cardiovascular disease increases the risk for severe coronavirus disease 2019 illness, hospitalisation, and death in adult patients, [16][17][18] clarity on the role of underlying congenital heart disease and other paediatric-onset chronic cardiovascular conditions has been slower to emerge. While several studies of mostly adult patients with underlying congenital heart disease showed very rare hospitalisations and deaths due to coronavirus disease 2019 infection, 19,20 more recent data from a large database of over 800 hospitals in the United States found an association between diagnostic codes for congenital cardiac and circulatory anomalies and increased risk of severe disease and hospitalisation in patients under 18 years of age.…”