University of Southampton, University of Oxford, University of Southampton - NIHR Southampton Clinical Research Facility and Biomedical Research Centre, Université de Lille, Children’s Hospital Horst-Schmidt-Kliniken Wiesbaden, Liverpool School of Tropical Medicine - Department of Clinical Sciences, Liverpool School of Tropical Medicine, Gemeinschaftspraxis für Kinder und Jugendmedizin, Association Clinique et Thérapeutique Infantile du Val-de-Marne (ACTIV), Charles Nicolle University Hospital of Tunis, Sanofi, Sanofi, Sanofi, Sanofi, Sanofi, Sanofi, Sanofi, University of Paris-Saclay - Division of Pediatrics and Neonatal Critical Care, University of Nottingham, University of Southampton - NIHR Southampton Clinical Research Facility and Biomedical Research Centre and Independent

University of Southampton, DIOSynVax Ltd, DIOSynVax Ltd, University of Cambridge, University of Cambridge, University of Cambridge, University of Cambridge, University of Cambridge, DIOSynVax Ltd, DIOSynVax Ltd, PHARMExcel, NHS Foundation Trust - Cambridge University Hospitals, NHS Foundation Trust - Cambridge University Hospitals, Imperial College London - School of Public Health, University of Southampton - NIHR Southampton Clinical Research Facility and Biomedical Research Centre and DIOSynVax Ltd