1 Wesfarmers Centre of Vaccines & Infectious Diseases, Telethon Kids Institute, Perth, Australia; School of Population & Global Health, University of Western Australia, Perth, Australia. Electronic address: Julie.Marsh@telethonkids.org.au.
2 Wesfarmers Centre of Vaccines & Infectious Diseases, Telethon Kids Institute, Perth, Australia; Faculty of Health and Medical Sciences, University of Western Australia Medical School, Crawley, Perth, Australia; Department of Respiratory Medicine, Perth Children's Hospital, Perth, Australia.
3 Berry Consultants, Austin, TX, USA; Vanderbilt University Department of Biostatistics, Nashville, TN, USA.
4 Berry Consultants, Austin, TX, USA.
5 Wesfarmers Centre of Vaccines & Infectious Diseases, Telethon Kids Institute, Perth, Australia; School of Public Health, Curtin University, Bentley, Perth, Australia; Department of Infectious Diseases, Perth Children's Hospital, Nedlands, Perth, Australia; Menzies School of Health Research and Charles Darwin University, Darwin, Australia.