1. National Centre for Immunisation Research and Surveillance, The Children’s Hospital at Westmead, NSW, Australia
2. Hunter New England Local Health District, NSW, Australia
3. The University of Newcastle, NSW, Australia
4. Illawarra Medical Centre, WA, Australia
5. Communicable Disease Control Directorate, Western Australia Department of Health, WA, Australia
6. School of Pathology and Laboratory Medicine, University of Western Australia, WA, Australia
7. Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, University of Western Australia, WA, Australia
8. National Centre for Epidemiology and Population Health, Research School of Population Health, The Australian National University, ACT, Australia
9. Princess Margaret Hospital, WA, Australia
10. University of Western Australia School of Paediatrics and Child Health, Princess Margaret Hospital, WA, Australia
11. Department of General Medicine, Royal Children's Hospital, Victoria, Australia
12. SAEFVIC, Murdoch Childrens Research Institute, Victoria, Australia
13. Department of Paediatrics, The University of Melbourne, Victoria, Australia
14. Discipline of Paediatrics and Child Health, University of Sydney, NSW, Australia
15. Department of Microbiology and Infectious Diseases, The Children’s Hospital at Westmead, NSW, Australia