1. Health Information and Quality Authority (HIQA) Dublin Ireland
2. Department of Health Policy & Management School of Medicine Trinity College Dublin Dublin Ireland
3. Department of Pharmacology & Therapeutics Trinity Health Sciences Trinity College Dublin Dublin Ireland
4. Public Health Agency of Sweden Solna Sweden
5. General Directorate of Public Health and Addictions IMIB‐Arrixaca, Murcia University Region of Murcia Spain
6. Division of Infection Control and Environmental Health Norwegian Institute of Public Health Oslo Norway
7. European Centre for Disease Prevention and Control Stockholm Sweden
8. Center for Infectious Disease Control National Institute for Public Health and the Environment Bilthoven The Netherlands
9. Statens Serum Institut Copenhagen Denmark
10. Finnish Institute for Health and Welfare Helsinki Finland
11. Pediatric Research Laboratory School of Health Sciences Faculty of Nursing National Kapodistrian University of Athens Athens Greece
12. National Advisory Committee on Immunisation Hellenic Ministry of Health Athens Greece
13. Institute of Epidemiology & Health University College London London UK
14. Vigilancia de Enfermedades Prevenibles por Vacunación Centro Nacional de Epidemiología Instituto de Salud Carlos III Ministerio de Ciencia e Innovación Madrid Spain
15. Immunization Unit Robert Koch‐Institute Berlin Germany