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Antimicrobial Agents and Chemotherapy, June 2003, p. 1999-2001, Vol. 47, No. 6
0066-4804/03/$08.00+0     DOI: 10.1128/AAC.47.6.1999-2001.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.

Risk Factors for Fecal Quinolone-Resistant Escherichia coli in Mexican Children

Mussaret B. Zaidi,1* Emma Zamora,1 Pilar Diaz,1 Linda Tollefson,2 Paula J. Fedorka-Cray,3 and Marcia L. Headrick2

Laboratorio de Investigación, Hospital General O'Horan, Mérida, Yucatan, Mexico,1 Center for Veterinary Medicine, Food and Drug Administration, Rockville, Maryland,2 Antimicrobial Resistance Research Unit, Agricultural Research Service, USDA Russell Research Center, Athens, Georgia3

Received 26 August 2002/ Returned for modification 19 November 2002/ Accepted 20 February 2003

We determined the prevalence of, and risk factors for, fecal quinolone-resistant Escherichia coli (QREC) in 324 children from Yucatan, Mexico. QREC was higher in children with recent Salmonella infection (100%) than in children with diarrhea (61%) or healthy children (54%) (P = 0.007). Multivariate analysis identified recent hospitalization of a family member (P = 0.011, odds ratio [OR] = 5.1) and carriage of Salmonella (P = 0.004, OR = 3.7) as independent risk factors for QREC.

* Corresponding author. Mailing address: Laboratorio de Investigación, Hospital General O'Horan, Av. Itzaes x Jacinto Canek, Mérida, Yucatan, C.P. 97000, México. Phone and fax: 52 999 923-86-73. E-mail: mbzaidi{at}yuc.quik.com.

Antimicrobial Agents and Chemotherapy, June 2003, p. 1999-2001, Vol. 47, No. 6
0066-4804/03/$08.00+0     DOI: 10.1128/AAC.47.6.1999-2001.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.





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