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Journal of Clinical Microbiology, January 2003, p. 373-378, Vol. 41, No. 1
0095-1137/03/$08.00+0     DOI: 10.1128/JCM.41.1.373-378.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.

M Protein Gene Type Distribution among Group A Streptococcal Clinical Isolates Recovered in Mexico City, Mexico, from 1991 to 2000, and Durango, Mexico, from 1998 to 1999: Overlap with Type Distribution within the United States

Luz Elena Espinosa,1 Zhongya Li,2 Demostenes Gomez Barreto,1 Ernesto Calderon Jaimes,1 Romeo S. Rodriguez,1 Varja Sakota,2 Richard R. Facklam,2 and Bernard Beall2*

Infectious Diseases, Hospital Infantil de Mexico "Federico Gomez," Col. Doctores, Mexico D.F. C.P. 06720, Mexico,1 Respiratory Diseases Branch, Division of Bacterial and Mycotic Diseases, Centers for Disease Control & Prevention, Atlanta, Georgia 303332

Received 18 June 2002/ Returned for modification 21 September 2002/ Accepted 6 October 2002

To examine the type distribution of pathogenic group A streptococcal (GAS) strains in Mexico, we determined the emm types of 423 GAS isolates collected from ill patients residing in Mexico (Durango or Mexico City). These included 282 throat isolates and 107 isolates from normally sterile sites. Of the other isolates, 38 were recovered from other miscellaneous infections. A total of 31 different emm types were found, revealing a broad overlap between commonly occurring emm types in Mexico and the United States. The information obtained in this study is consistent with the possibility that multivalent, M type-specific vaccines prepared for GAS strain distribution within the United States could theoretically protect against the majority of GAS strains causing disease in the two cities surveyed in Mexico.

* Corresponding author. Mailing address: Centers for Disease Control & Prevention, Mail Stop C0-2, 1600 Clifton Rd., NE, Atlanta, GA 30333. Phone: (404) 639-1237. Fax: (404) 639-3123. E-mail: BBeall{at}cdc.gov.

Journal of Clinical Microbiology, January 2003, p. 373-378, Vol. 41, No. 1
0095-1137/03/$08.00+0     DOI: 10.1128/JCM.41.1.373-378.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.



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Antimicrob. Agents Chemother. Clin. Microbiol. Rev.
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Copyright © 2003 by the American Society for Microbiology. All rights reserved.