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Journal of Clinical Microbiology, June 2005, p. 2940-2943, Vol. 43, No. 6
0095-1137/05/$08.00+0     doi:10.1128/JCM.43.6.2940-2943.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Enteropathogenic Escherichia coli Strains Carrying Genes Encoding the PER-2 and TEM-116 Extended-Spectrum ß-Lactamases Isolated from Children with Diarrhea in Uruguay

Rafael Vignoli,1 Gustavo Varela,1 María Inés Mota,1 Nicolas F. Cordeiro,1 Pablo Power,2 Elizabet Ingold,1 Pilar Gadea,1 Alfredo Sirok,1 Felipe Schelotto,1 Juan A. Ayala,3 and Gabriel Gutkind2*

Departamento de Bacteriología y Virología, Instituto de Higiene, Facultad de Medicina, Universidad de la República, 11600 Montevideo, Uruguay,1 Cátedra de Microbiología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, 1113 Buenos Aires, Argentina,2 Centro de Biología Molecular "Severo Ochoa," CSIC-UAM, Campus de Cantoblanco, 28049 Madrid, Spain3

Received 16 November 2004/ Returned for modification 10 January 2005/ Accepted 15 February 2005

We studied 13 extended-spectrum ß-lactamase (ESBL)-producing enteropathogenic Escherichia coli isolates from children suffering acute diarrhea in Uruguay. ESBL characterization in crude extracts showed a single band at pI 5.4. PCR amplification and sequencing data allowed identification of blaPER-2 and blaTEM-116. Retrospective analysis suggests that these strains were disseminated in the community, even if unnoticed, prior to their access to the hospital environment more than a decade ago.

* Corresponding author. Mailing address: Cátedra de Microbiología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, 1113 Buenos Aires, Argentina. Phone: 54 11 4964 8285. Fax: 54 11 4508 3645. E-mail: ggutkind{at}ffyb.uba.ar.

Journal of Clinical Microbiology, June 2005, p. 2940-2943, Vol. 43, No. 6
0095-1137/05/$08.00+0     doi:10.1128/JCM.43.6.2940-2943.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



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