[1] Univ Paris 07, Lab Etudes Genet Bacterienne Infect Enfant, EA 3105, Paris, France
[2] Hop Robert Debre, Microbiol Serv, AP HP, F-75019 Paris, France
[3] Hop Robert Debre, Serv Neonatol, AP HP, F-75019 Paris, France
[4] Hop Robert Debre, Serv Reanimat, AP HP, F-75019 Paris, France
[5] Inst Pasteur, Ctr Natl Reference Coqueluche & Autres Bordetello, F-75015 Paris, France