[1] Natl Inst Infect Dis L Spallanzani, Clin Dept, Rome, Italy
[2] Univ Bologna, Alma Mater Studiorum, Dept Med & Surg Sci, Infect Dis Unit, Bologna, Italy
[3] Univ Cattolica Sacro Cuore, Inst Infect Dis, A Gemelli Hosp, I-00168 Rome, Italy
[4] San Paolo Hosp, Dept Med Surg & Dent, Clin Infect Dis, Milan, Italy
[5] Cotugno Hosp, Dept Infect Dis, Naples, Italy
[6] San Gerardo Hosp, Dept Internal Med, Div Infect Dis, Monza, Italy
[7] Janssen SpA, Med Affairs, Cologno Monzese, Italy