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Antimicrobial Agents and Chemotherapy, June 2000, p. 1731-1733, Vol. 44, No. 6
0066-4804/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.

Quinolone Resistance in Enterotoxigenic Escherichia coli Causing Diarrhea in Travelers to India in Comparison with Other Geographical Areas

Jordi Vila,1,* Martha Vargas,1 Joaquim Ruiz,1 Manuel Corachan,2 M. Teresa Jimenez de Anta,1 and Joaquim Gascon2

Departments of Microbiology1 and Infectious Diseases (Tropical Medicine Unit),2 IDIBAPS (Institut d'Investigacions Biomèdiques August Pí i Sunyer), Hospital Clínic, School of Medicine, University of Barcelona, Barcelona, Spain

Received 30 December 1998/Returned for modification 18 September 1999/Accepted 27 March 2000

Enterotoxigenic Escherichia coli isolates were identified as a cause of traveler's diarrhea in 82 of 520 (16%) patients and tested for resistance to seven antimicrobial agents. Thirty patients (36%) needed antimicrobial therapy: 17 (56%) for persistence of symptoms and 13 (44%) for severity of symptoms. Ampicillin, tetracycline, and trimethoprim-sulfamethoxazole resistance was high. Chloramphenicol showed moderate activity, and amoxicillin plus clavulanic acid, nalidixic acid, and ciprofloxacin showed very good activity. Five nalidixic acid-resistant strains were isolated, four from patients visiting India.


* Corresponding author. Mailing address: Laboratori de Microbiologia, Hospital Clínic, Facultat de Medicina, Universitat de Barcelona, Villarroel, 170, 08036 Barcelona, Spain. Phone: 34.3.2275522. Fax: 34.3.2275454. E-mail: vila{at}medicina.ub.es.


Antimicrobial Agents and Chemotherapy, June 2000, p. 1731-1733, Vol. 44, No. 6
0066-4804/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.



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