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Applied and Environmental Microbiology, April 2004, p. 2556-2559, Vol. 70, No. 4
0099-2240/04/$08.00+0     DOI: 10.1128/AEM.70.4.2556-2559.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.

Serotyping, stx2 Subtyping, and Characterization of the Locus of Enterocyte Effacement Island of Shiga Toxin-Producing Escherichia coli and E. coli O157:H7 Strains Isolated from the Environment in France

C. Vernozy-Rozand,1* M. P. Montet,1 Y. Bertin,2 F. Trably,1 J. P. Girardeau,2 C. Martin,2 V. Livrelli,3 and L. Beutin4

Unité de Microbiologie Alimentaire et Prévisionnelle, Ecole Nationale Vétérinaire de Lyon, Marcy l'Etoile,1 Laboratoire de Microbiologie, Centre de Recherche INRA de Clermont-Ferrand-Theix, 63122 St-Genès-Champanelle,2 Groupe de Recherche Pathogénie Bactérienne Intestinale, Faculté de Pharmacie, Université d'Auvergne Clermont-1, 63001 Clermont-Ferrand, France,3 Division of Microbial Toxins, Robert Koch-Institut, D-13353 Berlin, Germany4

Received 4 September 2003/ Accepted 2 January 2004

Twenty-seven Shiga toxin-producing Escherichia coli (STEC) strains were isolated from 207 stx-positive French environmental samples. Ten of these strains were positive for stx1, and 24 were positive for stx2 (10 were positive for stx2vh-a or stx2vh-b, 19 were positive for stx2d, and 15 were positive for stx2e). One strain belonged to serotype O157:H7, and the others belonged to serogroups O2, O8, O11, O26, O76, O103, O113, O121, O141, O166, and O174. The environment is a reservoir in which new clones of STEC that are pathogenic for humans can emerge.

* Corresponding author. Mailing address: Unité de Microbiologie Alimentaire et Prévisionnelle, Ecole Nationale Vétérinaire de Lyon, B.P. 83, 69280 Marcy l'Etoile, France. Phone: 33 (0)4 78 87 25 53. Fax: 33 (0)4 78 87 25 54. E-mail: c.vernozy{at}vet-lyon.fr.

Applied and Environmental Microbiology, April 2004, p. 2556-2559, Vol. 70, No. 4
0099-2240/04/$08.00+0     DOI: 10.1128/AEM.70.4.2556-2559.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.



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