[1] Univ Sassari, Dept Med Surg & Expt Sci, Unit Infect Dis, Sassari, Italy
[2] Area Socio Sanit Locale, Dept Emergency, Olbia, Italy
[3] Univ Belgrade, Fac Med, Belgrade, Serbia
[4] Univ Clin Ctr Serbia, Clin Infect & Trop Dis, Belgrade, Serbia
[5] Dalhousie Univ, Fac Med, Canadian Ctr Vaccinol, Dept Microbiol & Immunol, Halifax, NS, Canada
[6] Shantou Univ, Lab Immun, Coll Med, Shantou, Peoples R China
[7] Azienda Osped Univ Sassari, Unit Microbiol & Virol, Sassari, Italy
[8] Univ Sassari, Dept Biomed Sci, Sassari, Italy
[9] Univ Belgrade, Fac Med, Belgrade, Serbia
[10] Univ Belgrade, Clin Ctr Serbia, Belgrade, Serbia
[11] Univ Clin Ctr Serbia, Clin Orthpaed Surg & Traumatol, Belgrade, Serbia