[1] Univ Siena, Postgrad Sch Publ Hlth, Dept Mol & Dev Med, Siena, Italy
[2] St Louis Hosp, AP HP, Dept Biostat & Med Informat, Paris, France
[3] Lariboisiere Hosp, AP HP, Infect Control Unit, Paris, France
[4] Lariboisiere Hosp, AP HP, Bacteriol, Paris, France
[5] Paris Diderot Univ, Sorbonne Paris Cite, French Natl Inst Hlth & Med Res, Unit 1137,Infect Antimicrobials Modelling Evolut, Paris, France
[6] St Louis Hosp, French Natl Inst Hlth & Med Res, Unit 1153, Stat & Epidemiol Res Ctr,Sorbonne Paris Cite, Paris, France
[7] Paris Diderot Univ Paris 7, SPC, Paris, France