1. Alejandra Alonso, MPH, is a Consultant in Paediatric Infectious Diseases, Department of Infection, Evelina London Children’s Hospital; Jonathan Cohen, PhD, is a Consultant in Paediatric Immunology and Infectious Diseases, Department of Paediatric Immunology and Infectious Diseases, Evelina London Children’s Hospital; Chris Meadows, FRCP, is a Consultant in Intensive Care Medicine and ECMO, Department of Critical Care, St Thomas’ Hospital; and Geraldine O’Hara, PhD, is a Consultant in Infectious Diseases,...