[1] Univ Hosp St Etienne, Hosp Bellevue, Infect Dis Unit, Infect Control Unit, F-42055 St Etienne 2, France
[2] Univ Hosp St Etienne, Occupat Hlth Unit, St Etienne, France
[3] Univ Hosp St Etienne, Pediat Intens Care Unit, St Etienne, France
[4] Univ Hosp St Etienne, Microbiol Lab, GIMAP, St Etienne, France