1. Centre for Health Communication and Participation, School of Psychology and Public Health; La Trobe University; Bundoora Australia
2. UNESCO Child & Family Research Centre; School of Political Science & Sociology, University of Galway; Galway Ireland
3. Cochrane Australia; School of Public Health & Preventive Medicine; Melbourne Australia
4. Department of Nursing and Allied Health; Swinburne University of Technology; Hawthorn Australia
5. Burnet Institute; Melbourne Australia
6. School of Psychology and Public Health; La Trobe University; Bundoora Australia
7. Centre for Health Communication and Participation; School of Psychology and Public Health, La Trobe University; Bundoora Australia
8. Wales COVID-19 Evidence Centre; Cardiff University, 8th floor Neuadd Meirionnydd, Heath Park; Cardiff CF14 4XN UK
9. PRIME Centre Wales; Division of Population Medicine, School of Medicine, 8th floor Neuadd Meirionnydd, Heath Park; Cardiff CF14 4XN UK
10. Vaccine Uptake Group, Murdoch Children's Research Institute ; The Royal Children's Hospital; Parkville Australia
11. Melbourne Australia
12. GRADE McMaster & Cochrane Canada, Health Research Methods, Evidence & Impact; McMaster University ; Hamilton, Ontario Canada
13. Department of Business Economics, Health and Social Care; University of Applied Sciences and Arts of Southern Switzerland; Lugano Switzerland
14. The George Institute for Global Health; University of New South Wales; Sydney Australia