[1] Natl Inst Infect Dis L Spallanzani IRCCS, Clin & Res Dept Infect Dis, I-00149 Rome, Italy
[2] Infect Dis ISMETT IRCCS, I-90127 Palermo, Italy
[3] Univ Bologna, IRCCS S Orsola Teaching Hosp, Dept Med & Surg Sci, Alma Mater Studiorum, I-40126 Bologna, Italy
[4] Univ Florence, Dept Expt & Clin Med, I-50121 Florence, Italy
[5] Univ Genoa, Dept Hlth Sci DISSAL, I-16126 Genoa, Italy
[6] San Martino Polyclin Hosp IRCCS, Infect Dis Unit, I-16132 Genoa, Italy
[7] Univ Udine, Infect Dis Clin, Dept Med, I-33100 Udine, Italy
[8] Azienda Sanit Univ Integrata Udine, I-33100 Udine, Italy
[9] Monza Univ Milano Bicocca, San Gerardo Hosp, Dept Infect Dis, I-20126 Milan, Italy
[10] Hosp Crema, I-26013 Crema, Italy
[11] Sapienza Univ Rome, Dept Publ Hlth & Infect Dis, Policlin Umberto I, I-00185 Rome, Italy
[12] Azienda Sanit Univ Integrata Trieste, Dept Infect Dis, I-34128 Trieste, Italy
[13] Univ Modena & Reggio Emilia, Clin Infect Dis, I-41121 Modena, Italy
[14] Univ Naples Federico II, Infect Dis Sect, Dept Clin Med & Surg, I-80138 Naples, Italy
[15] Vito Fazzi Hosp, I-73100 Lecce, Italy
[16] Fdn IRCCS Policlin San Matteo, Div Infect Dis & Immunol, I-27100 Pavia, Italy
[17] ASST Lecco Hosp, Infect Dis, I-23900 Lecce, Italy