Roxanne Strachan1, Nusrat Homaira2,3, Sean Beggs4,5, Mejbah U Bhuiyan6,7, Gwendolyn L Gilbert8, Stephen B Lambert9,10, Kristine Macartney11,12, Helen Marshall13,14, Andrew C Martin15, Gabrielle B McCallum16, Angela McCullagh17,18, Tim McDonald19, Peter McIntyre11,20, Shahin Oftadeh21, Sarath Ranganathan22,23, Sadasivam Suresh24, Claire E Wainwright25,26, Angela Wilson27, Melanie Wong28, Thomas Snelling29, Adam Jaffé2,3. 1. Department of Respiratory Medicine, Sydney Children's Hospital Randwick, Randwick, New South Wales, Australia roxanne.strachan@health.nsw.gov.au. 2. Department of Respiratory Medicine, Sydney Children's Hospital Randwick, Randwick, New South Wales, Australia. 3. School of Women's and Children's Health, University of New South Wales-Kensington Campus, Sydney, New South Wales, Australia. 4. Department of Paediatrics, Royal Hobart Hospital, Hobart, Tasmania, Australia. 5. School of Medicine, University of Tasmania, Hobart, Tasmania, Australia. 6. Division of Paediatrics, School of Medicine, Faculty of Health and Medical Science, University of Western Australia, Crawley, Western Australia, Australia. 7. Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, Nedlands, Western Australia, Australia. 8. Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, Sydney, New South Wales, Australia. 9. School of Medicine, University of Queensland, UQ Child Health Research Centre, Brisbane, Queensland, Australia. 10. Children's Health Queensland, Queensland Paediatric Infectious Diseases Laboratory, Brisbane, Queensland, Australia. 11. Infectious Diseases, Children's Hospital at Westmead, Westmead, New South Wales, Australia. 12. National Centre for Immunisation Research and Surveillance of Vaccine Preventable Diseases, Westmead, New South Wales, Australia. 13. Vaccinology and Immunology Research Trials Unit, Women's and Children's Hospital, Women's and Children's Health Network, North Adelaide, South Australia, Australia. 14. Child and Adolescent Health, Robinson Research Institute, The University of Adelaide, North Adelaide, South Australia, Australia. 15. Paediatrics, Princess Margaret Hospital For Children, Perth, Western Australia, Australia. 16. Child Health Division, Menzies School of Health Research, Darwin, Northern Territory, Australia. 17. Respiratory and Sleep Medicine, Monash Children's Hospital, Melbourne, Victoria, Australia. 18. Paediatrics, Monash University, Clayton, Victoria, Australia. 19. Paediatrics, Canberra Hospital, Canberra, Australian Capital Territory, Australia. 20. Women's and Children's Health, University of Otago-Dunedin Campus, Dunedin, New Zealand. 21. Centre for Infectious Diseases and Microbiology Laboratory Services, Institute of Clinical Pathology and Medical Research, Wentworthville, New South Wales, Australia. 22. Paediatrics, The University of Melbourne Department of Paediatrics, Parkville, Victoria, Australia. 23. Infection and Immunology, Murdoch Childrens Research Institute, Parkville, Victoria, Australia. 24. Department of Respiratory Medicine, Queensland Children's Hospital, South Brisbane, Queensland, Australia. 25. Respiratory and Sleep Medicine, Queensland Children's Hospital, South Brisbane, Queensland, Australia. 26. Child Health Research Centre, The University of Queensland, South Brisbane, Queensland, Australia. 27. Department of Paediatrics, Alice Springs Hospital, Alice Springs, Northern Territory, Australia. 28. Immunology, The Children's Hospital at Westmead, Westmead, New South Wales, Australia. 29. School of Women's and Children's Health, The University of Sydney, Sydney, New South Wales, Australia.