Nanjing Medical University - School of Public Health, Nanjing Medical University, University of Edinburgh - Usher Institute, Utrecht University - Department of Pediatrics, University of Washington - Division of Allergy and Infectious Diseases, University of Cape Town (UCT) - Department of Pediatrics and Child Health, University of Edinburgh, Wuhan University, Nanjing Medical University, University College Hospital, University of Birmingham, Shenzhen Children’s Hospital, Hospital Clínic de Barcelona, University of Turku, Pontificia Universidade Catolica do Rio Grande do Sul (PUCRS) - Centro Infant, University Hospital Würzburg - Division of Paediatric Infectious Diseases, University of Split, Ohio State University (OSU), University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit, Medical University of Graz - Research Unit for Neonatal Infectious Diseases and Epidemiology, MAHAN Trust Mahatma Gandhi Tribal Hospital, National University of Singapore (NUS), University of Colorado at Denver - Department of Pediatrics and University of Edinburgh - College of Medicine & Veterinary Medicine