1. Department of Paediatrics, The University of Melbourne, Parkville, Australia
2. Infectious Diseases Unit, Royal Children’s Hospital Melbourne, Parkville, Australia
3. Infectious Diseases and Microbiology Research Group, Murdoch Children’s Research Institute, Parkville, Australia
4. Infectious Diseases Unit, University of Basel Children’s Hospital, Switzerland
5. School of Population Health Sciences and School of Cellular and Molecular Medicine, University of Bristol, United Kingdom
6. Bristol Children’s Vaccine Centre, United Kingdom
7. University Hospitals Bristol National Health Service Foundation Trust, United Kingdom