1. European Centre for Disease Prevention and Control, Stockholm, Sweden
2. Centre for Health Security and Communicable Disease Control, Directorate of Health, Reykjavik, Iceland
3. Communicable Diseases Centre, National Institute of Public Health, Ljubljana, Slovenia
4. Ministry of Health, Nicosia, Cyprus
5. National Centre of Epidemiology, CIBER in Infectious Diseases (CIBERINFEC), Carlos III Health Institute, Madrid, Spain
6. Department of Communicable Diseases Epidemiology Health Board, Tallinn, Estonia
7. National Center for Public Health and Pharmacy, Budapest, Hungary
8. Health Directorate Luxembourg, Division de l’inspection sanitaire, Luxembourg, Luxembourg
9. HSE Public Health: National Health Protection Office, Dublin, Ireland
10. Directorate of Information and Analysis, Directorate-General of Health, Lisbon, Portugal
11. Finnish Institute for Health and Welfare, Helsinki, Finland
12. Department of Infection Control and Vaccine, Norwegian Institute of Public Health, Oslo, Norway
13. The Centre for Disease Prevention and Control, Riga, Latvia
14. National Public Health Centre, Vilnius, Lithuania
15. Grigorios HIV Clinic, Larnaca General Hospital, Larnaca, Cyprus
16. Rijksinstituut voor Volksgezondheid en Milieu, Bilthoven, the Netherlands
17. National AIDS Unit, Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
18. Public Health Agency of Sweden, Stockholm, Sweden
19. Public Health Unit Cascais, Western Lisbon Local Health Unit, Lisbon, Portugal
20. Department of Infectious Disease Epidemiology and Prevention Statens Serum Institut, Copenhagen, Denmark