1. Senior Research Fellow, Clinical Sciences, University of Bristol, 9 Ridgeway Road, Long Ashton, Bristol, BS41 9EX, UK
2. Primary Care, Servicio Madrileño de Salud, Madrid, Spain
3. Department of Internal Medicine and Rheumatology, Martini Hospital, Groningen, The Netherlands
4. Department of Biomedicine and Prevention, University Tor Vergata, Rome, Italy
5. Annecy-Genevois Hospital, Infectious Diseases Department, Annecy, France
6. Lisbon Faculty of Medicine, Lisbon University, Lisbon, Portugal
7. Service d’Ophtalmologie, Hôpital Bicêtre, APHP, Université Paris-Sud, France Département de Virologie, Institute for Integrative Biology of the Cell (I2BC), CNRS, Gif/Yvette, France
8. Department of Geriatrics, University Hospitals of Geneva, Belle Idée, Geneva, Switzerland
9. Department of Dermatology, Azienda Ospedaliera papa Giovanni XXIII, Bergamo, Italy
10. School of Medicine, University of Barcelona, Barcelona, Spain
11. Klinikum Ernst von Bergmann, Klinik für Gastroenterologie und Infekiologie, Potsdam, Germany