[1] Univ Thessalia, Sch Med, Dept Microbiol, Larisa, Greece
[2] Univ Patras, Sch Med, Dept Microbiol, GR-26110 Patras, Greece
[3] Sismanogl Gen Hosp Athens, Dept Microbiol, Athens, Greece
[4] Univ Patras, Sch Med, Div Infect Dis, GR-26110 Patras, Greece
[5] Univ Patras, Sch Med, Dept Anaesthesiol, GR-26110 Patras, Greece
[6] Univ Hosp Larissa, ICU, Larisa, Greece
[7] Univ Hosp AHEPA, Dept Microbiol, Thessaloniki, Greece