1. Department of Clinical and Experimental Medicine and Surgery; Second University of Naples; Naples Italy
2. Medical Center; Centro Sociale ex Canapificio; Caserta Italy
3. Epidemiology Unit, Department of Infectious, Parasite and Immune-Mediated Diseases; Italian Institute of Health; Rome Italy
4. University of Biomedical Campus; Rome Italy
5. Department of Mental Health and Public Medicine; Second University of Naples; Naples Italy
6. Department of Public Health and Infectious Diseases; Sapienza University of Rome; Rome Italy
7. Medical Center; Centro per la Tutela della Salute degli Immigrati; Naples Italy
8. Medical center; Centro Suore Missionarie della Carità; Naples Italy