1. Unit of Infectious Diseases, Department of Medicine, Surgery, and Pharmacy, University of Sassari, 07100 Sassari, Italy
2. PhD School in Biomedical Science, Biomedical Science Department, University of Sassari, 07100 Sassari, Italy
3. Medicina Protetta-Unit of Infectious Diseases, Belcolle Hospital, 01100 Viterbo, Italy
4. Health Protection for Adults and Youth Unit, Penitentiary Institute, 84124 Salerno, Italy
5. Penitentiary Infectious Diseases Unit, A.O. Santi Paolo e Carlo, University of Milan, 20122 Milan, Italy
6. Infectious Disease Unit, Galliera Hospital, 16128 Genoa, Italy
7. Unit of Infectious Diseases, Department of Clinical Medicine, Ospedale Dell’Angelo, 30174 Venice, Italy
8. Unit of Infectious Diseases, Department of Clinical Medicine, Ospedale Civile “S.S. Giovanni e Paolo”, 30122 Venice, Italy