1. Vaccinology and Immunology Research Trials Unit, Women’s and Children’s Health Network, Adelaide, South Australia, Australia
2. Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
3. Microbiology and Infectious Diseases Directorate, South Australia Pathology, Adelaide, South Australia, Australia
4. South Australian Health and Medical Research Institute Women and Kids, Adelaide, South Australia, Australia
5. School of Public Health, University of Adelaide, Adelaide, South Australia, Australia
6. Communicable Disease Control Branch, SA Health, Adelaide, South Australia, Australia
7. Bristol Children’s Vaccine Centre, School of Cellular and Molecular Medicine and School of Population Health Sciences, University of Bristol, Bristol, England
8. Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
9. National Centre for Epidemiology and Population Health, Australian National University, Canberra, Australian Capital Territory, Australia