[1] Univ Lyon, Univ Lyon 1, Univ St Etienne, Univ Gustave Eiffel,IFSTARR,UMRESTTE,UMR T9405, F-42005 St Etienne, France
[2] Univ Hosp Ctr St Etienne, Occupat Hlth Serv, F-42005 St Etienne, France
[3] Univ Hosp St Etienne, Infect Dis Dept, Infect Control Unit, F-42000 St Etienne, France
[4] Jean Monnet Univ, Prevent Med Dept, F-42000 St Etienne, France
[5] Univ Hosp Ctr St Etienne, Dept Psychiat, F-42005 St Etienne, France
[6] Univ Hosp Ctr St Etienne, Publ Hlth Serv, F-42005 St Etienne, France