[1] Catholic Univ Louvain, Bacteriol Lab, Clin Univ UCL Mt Godinne, B-5530 Yvoir, Belgium
[2] Hop Bicetre, AP HP, Serv Bacteriol Virol, Fac Med, F-94275 Le Kremlin Bicetre, France
[3] Univ Libre Bruxelles, Hop Erasme, Unite Microbiol, B-1070 Brussels, Belgium
[4] Hop St Joseph, Bacteriol Lab, B-6060 Gilly, Belgium
[5] INSERM, Emerging Resistance Antibiot U914, Paris, France
[6] Catholic Univ Louvain, Bacteriol Lab, UCL Mt Godinne, B-5530 Yvoir, Belgium