1. Vaccinology and Immunology Research Trials Unit, Women’s and Children’s Health Network, Adelaide, Australia
2. Robinson Research Institute and Adelaide Medical School, The University of Adelaide, Adelaide, Australia
3. Epidemiology Branch, Prevention and Population Health Directorate, Wellbeing SA, Adelaide, Australia
4. Prevention and Population Health Directorate, Wellbeing SA, Adelaide, Australia
5. School of Public Health, The University of Adelaide, Adelaide, Australia