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Journal of Clinical Microbiology, June 2001, p. 2134-2139, Vol. 39, No. 6
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.6.2134-2139.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Etiology of Children's Diarrhea in Montevideo, Uruguay: Associated Pathogens and Unusual Isolates

M. E. Torres,1 M. C. Pírez,1,2 F. Schelotto,1,* G. Varela,1 V. Parodi,1 F. Allende,1 E. Falconi,1 L. Dell'Acqua,1 P. Gaione,1 M. V. Méndez,2 A. M. Ferrari,2 A. Montano,1,2 E. Zanetta,3 A. M. Acuña,3 H. Chiparelli,1 and E. Ingold1

Bacteriology and Virology Department, Institute of Hygiene,1 Pediatric Clinic "A," Children's Hospital "Pereira Rossell,"2 and Parasitology Department, Institute of Hygiene,3 School of Medicine, Universidad de la República, Montevideo, Uruguay

Received 28 November 2000/Returned for modification 1 February 2001/Accepted 27 March 2001

We studied microorganisms associated with infant diarrhea in a group of 256 children admitted to a public pediatric hospital in Montevideo, Uruguay. Diagnostic procedures were updated to optimize detection of potential pathogens, which were found in 63.8% of cases, and to be able to define their characteristics down to molecular or antigenic type. Coinfection with two or more agents was detected in more than one-third of positive studies. Escherichia coli enteric virotypes, especially enteropathogenic E. coli (EPEC), were shown to be prevalent. Rotavirus, Cryptosporidium, Campylobacter (mainly Campylobacter jejuni), and Shigella flexneri were also often identified. Enterotoxigenic E. coli, Salmonella, and Giardia lamblia were sporadically recognized. Unusual findings included two enteroinvasive E. coli strains, one Shigella dysenteriae 2 isolate, and a non-O:1 Vibrio cholerae culture. EPEC bacteria and S. flexneri (but not Salmonella) showed unusually frequent antimicrobial resistance, especially towards beta-lactam antibiotics, which is the subject of ongoing work.

* Corresponding author. Mailing address: Bacteriology and Virology Department, Institute of Hygiene, Av. Dr. Alfredo Navarro 3051, CP 11600, Montevideo, Uruguay. Phone: 598 2 4875795. Fax: 598 2 4873073. E-mail: bacvir{at}hc.edu.uy.

Journal of Clinical Microbiology, June 2001, p. 2134-2139, Vol. 39, No. 6
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.6.2134-2139.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


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