1. Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Via Don Angelo Sempreboni 5, Negrar, 37024 Verona, Italy
2. Unit of Neurology, Ospedale Maria Vittoria, ASL Città di Torino, Via Luigi Cibrario, 72, 10144 Torino, Italy
3. Unit of Infectious Diseases, Department of Medical Sciences, University of Torino, Ospedale Amedeo di Savoia, C.so Svizzera 164, 10124 Torino, Italy