[1] Univ Genoa, Dept Hlth Sci, Genoa, Italy
[2] San Martino Policlin Hosp IRCCS, Clin Malattie Infett, Genoa, Italy
[3] Univ Turin, Infect Dis City Hlth & Sci, Dept Med Sci, Turin, Italy
[4] Univ Milan, Fdn IRCCS Ca Granda Osped Maggiore Policlin, Infect Dis Unit, Milan, Italy
[5] Univ Milan, Dept Pathophysiol & Transplantat, Milan, Italy
[6] Univ Milan, Ctr Multidisciplinary Res Hlth Sci MACH, Milan, Italy