1. Infectious Diseases Unit, ARNAS Civico-Di Cristina Hospital, 90127 Palermo, Italy
2. Clinical Department of Medical, Surgical and Health Sciences, Trieste University, 34127 Trieste, Italy
3. First Division of Infectious Diseases, Cotugno Hospital, Azienda Ospedaliera dei Colli, 80131 Naples, Italy
4. Clinical and Research Department for Infectious Diseases, National Institute for Infectious Diseases L. Spallanzani, IRCCS, 00149 Rome, Italy
5. Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
6. Clinical Pharmacology Unit, IRCCS University Hospital of Bologna, 40138 Bologna, Italy
7. Microbiology and Virology Unit, Great Metropolitan Hospital “Bianchi-Melacrino-Morelli”, 89133 Reggio Calabria, Italy
8. Infectious and Tropical Diseases Unit, Department of Medical and Surgical Sciences, ‘Magna Graecia’ University of Catanzaro, 88100 Catanzaro, Italy
9. Infectious Diseases Unit, University Hospital P. Giaccone, 90127 Palermo, Italy
10. Infectious and Tropical Diseases Unit, University Hospital “Renato Dulbecco”, 88100 Catanzaro, Italy