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Journal of Clinical Microbiology, February 2007, p. 620-626, Vol. 45, No. 2
0095-1137/07/$08.00+0     doi:10.1128/JCM.01917-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

CTX-M ß-Lactamase-Producing Escherichia coli in French Hospitals: Prevalence, Molecular Epidemiology, and Risk Factors{triangledown}

Jean-Philippe Lavigne,1,2 Hélène Marchandin,1,3 Julien Delmas,4,5 Jérôme Moreau,6 Nicole Bouziges,1,2 Evelyne Lecaillon,7 Laurent Cavalie,3 Hélène Jean-Pierre,1,3 Richard Bonnet,4,5 and Albert Sotto1*

Laboratoire Universitaire d'Antibiologie, UFR de Médecine, Avenue Kennedy, 30908 Nîmes Cedex 2, France,1 Laboratoire de Bactériologie, Virologie, Parasitologie, CHU de Nîmes, Groupe Hospitalo-Universitaire de Carémeau, Place du Professeur Robert Debré, 30029 Nîmes Cedex 9, France,2 Laboratoire de Bactériologie, CHU Arnaud de Villeneuve, 371, Avenue du Doyen Gaston Giraud, 34295 Montpellier Cedex 5, France,3 Laboratoire de Bactériologie, CHU Clermont-Ferrand, 63003 Clermont-Ferrand, France,4 Université de Clermont 1, Faculté de Médecine, 63001 Clermont-Ferrand, France,5 Equipe Ecologie- Evolution UMR 5561 Biogéosciences, Université de Bourgogne, 6 Boulevard Gabriel, 21000 Dijon, France,6 Service de Biologie Polyvalente, CHG Saint-Jean-Perpignan, 20 Avenue du Languedoc, 66046 Perpignan, France7

Received 15 September 2006/ Returned for modification 30 October 2006/ Accepted 6 November 2006

In 2004, 65 CTX-M-producing Escherichia coli isolates were collected from infected patients in four French hospitals. The blaCTX-M-15 genes were predominant. Pulsed-field gel electrophoresis highlighted a clonal propagation of CTX-M-15-producing strains belonging to phylogenetic group B2, notably in the community. The main risk factors for acquiring these isolates were urinary tract infections or the presence of a urinary catheter in diabetic or renal failure patients.


* Corresponding author. Mailing address: Laboratoire Universitaire d'Antibiologie, Faculté de Médecine, CS83021, Avenue Kennedy, 30908 Nîmes Cedex 02, France. Phone: (33) 4 66 68 32 31. Fax: (33) 4 66 68 38 24. E-mail: albert.sotto{at}chu-nimes.fr.

{triangledown} Published ahead of print on 15 November 2006.


Journal of Clinical Microbiology, February 2007, p. 620-626, Vol. 45, No. 2
0095-1137/07/$08.00+0     doi:10.1128/JCM.01917-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.




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