1. Medical School, National and Kapodistrian University of Athens, Athens, Greece
2. European Centre for Disease Prevention and Control, Solna, Sweden
3. University College London, London, United Kingdom
4. Public Health Agency of Sweden, Solna, Sweden
5. Department of Infectious Diseases, School of Medicine, University of Zagreb, Zagreb, Croatia
6. Santé publique France, the French national public health agency, Saint-Maurice, France
7. Sorbonne Université, INSERM, Institut Pierre Louis d’Épidémiologie et de Santé Publique, Paris, France
8. Statens Serum Institut, Copenhagen, Denmark
9. Public Health England, London, United Kingdom
10. ASST Santi Paolo e Carlo University Hospital, Milan, Italy
11. Centro Nacional de Epidemiologia, Instituto de Salud Carlos III, Madrid, Spain
12. Istituto Nazionale Malattie Infettive ‘L. Spallanzani, Roma, Italy
13. Robert Koch Institute, Berlin, Germany
14. Medical University Innsbruck, Innsbruck, Austria
15. Rigshospitalet, Copenhagen University, Copenhagen, Denmark
16. National Institute for Public Health and the Environment, Bilthoven, The Netherlands
17. Hellenic Center for Disease Control and Prevention, Amarousio, Greece
18. Stichting HIV Monitoring, Amsterdam, The Netherlands
19. Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
20. Austrian Agency for Health and Food Safety, Vienna, Austria
21. Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
22. National AIDS Unit, Istituto Superiore di Sanita, Rome, Italy