1. Multiple Sclerosis Center and Neurology Department, IRCCS Ospedale San Raffaele, Milan, Italy
2. Department of Neurology and Multiple Sclerosis Center, ASST ‘Papa Giovanni XXIII’, Bergamo, Italy
3. Department of Infectious Diseases, ASST ‘Papa Giovanni XXIII’, Bergamo, Italy
4. SCDO Neurology and Regional Reference Multiple Sclerosis Center, A.O.U. San Luigi, Orbassano, Italy
5. Multiple Sclerosis Center, Spedali Civili of Brescia, Montichiari, Italy
6. Division of Infectious Diseases, San Raffaele Scientific Institute, Milan, Italy
7. The Institute of Experimental Neurology and Multiple Sclerosis Center IRCCS, San Raffaele Hospital, Milan
8. Division of Infectious Diseases, Department of Infectious Diseases, ASST Fatebenefratelli Sacco University Hospital, Milan, Italy
9. Infectious Diseases Unit, Busto Arsizio Hospital, Busto Arsizio, Italy/Luigi Sacco University Hospital, III Division of Infectious Diseases, Milan and Infectious Diseases Unit, Busto Arsizio, Italy
10. III Division of Infectious Diseases, ASST Fatebenefratelli Sacco, Department of Biomedical and Clinical Sciences ‘L.Sacco’, University of Milan, Italy
11. Division of Neuroradiology, IRCCS San Raffaele Scientific Institute, Milan, Italy/Neuroradiology Department, ‘Papa Giovanni XXIII’ Hospital, Bergamo, Italy
12. III Division of Infectious Diseases, ASST Fatebenefratelli Sacco, University of Milan, Italy
13. Department of Gynecology and Obstetrics, Vita Salute San Raffaele University, IRCCS Ospedale San Raffaele, Milan, Italy
14. Department of Neuroscience, San Camillo-Forlanini Hospital, Rome, Italy
15. SC Infectious Diseases ASST Niguarda Ca Grande Hospital, Milan, Italy
16. Multiple Sclerosis Center, Spedali Civili of Brescia, Montichiari, Italy/Department of General Psychology, University of Padova, Padova, Italy
17. Multiple Sclerosis Center, Hospital of Gallarate, ASST della Valle Olona, Gallarate, Italy
18. III Division of Infectious Diseases, ASST Fatebenefratelli Sacco, University of Milan, Milan, Italy