[1] Univ Paris 11, Hop Bicetre, Serv Bacteriol Virol, Assistance Publ Hop Paris, F-94275 Le Kremlin Bicetre, France
[2] Inst Pasteur, Unite Rech Biodiversite Pathogenes Bacteriens Eme, Paris, France
[3] Univ Med & Pharm Gr T Popa, St Maria Pediat Hosp, Iasi, Romania