1. NIHR Southampton Clinical Research Facility and Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust
2. Faculty of Medicine and Institute for Life Sciences, University of Southampton, Southampton, UK
3. Translational Paediatrics and Infectious Diseases, Hospital Clínico Universitario and Universidad de Santiago de Compostela
4. Genetics, Vaccines and Paediatric Infectious Diseases Research Group (GENVIP), Instituto de Investigación Sanitaria de Santiago and Universidad de Santiago de Compostela (USC), Galicia
5. CIBER Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
6. Centre for Neonatal and Paediatric Infection, Institute for Infection and Immunity, St George's, University of London
7. Department of Paediatrics, St George's University Hospital NHS Foundation Trust, London, UK