[1] Univ Milan, Luigi Sacco Dept Biomed & Clin Sci, Milan, Italy
[2] ASST Fatebenefratelli Sacco, Dept Infect Dis, Milan, Italy
[3] ASST Fatebenefratelli Sacco, Intens Care Unit, Milan, Italy
[4] ASST Fatebenefratelli Sacco, Pathol Unit, Milan, Italy