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Journal of Clinical Microbiology, July 2001, p. 2677-2680, Vol. 39, No. 7
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.7.2677-2680.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Increasing Multidrug Resistance in Helicobacter pylori Strains Isolated from Children and Adults in Mexico

Javier Torres,1,* Margarita Camorlinga-Ponce,1 Guillermo Pérez-Pérez,2 Armando Madrazo-De la Garza,3 Margarita Dehesa,4 Gerardo González-Valencia,1 and Onofre Muñoz1

Unidad de Investigación Médica en Enfermedades Infecciosas,1 Departamento de Gastroenterología, Hospital de Pediatría,3 and Departamento de Gastroenterología, Hospital de Especialidades,4 Instituto Mexicano del Seguro Social, Centro Médico Nacional Siglo XXI, Mexico City, Mexico, and Division of Infectious Diseases, New York University, New York, New York2

Received 22 December 2000/Returned for modification 14 March 2001/Accepted 30 April 2001

The susceptibilities to three antimicrobials of 195 Helicobacter pylori strains isolated from Mexican patients is reported; 80% of the strains were resistant to metronidazole, 24% were resistant to clarithromycin, and 18% presented a transient resistance to amoxicillin. Resistance to two or more antimicrobials increased significantly from 1995 to 1997.

* Corresponding author. Mailing address: Prol. Av. Centenario 1707-39, Bosques de Tarango, México, D.F., CP 01580, México. Phone: 52 5 627-6940. Fax: 52 5 627-6949. E-mail: jtorresl{at}axtel.net.

Journal of Clinical Microbiology, July 2001, p. 2677-2680, Vol. 39, No. 7
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.7.2677-2680.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


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