Predominance of the Multiresistant 23F International Clone ofStreptococcus pneumoniaeamong Isolates from Mexico
- 1 January 1998
- journal article
- research article
- Published by Mary Ann Liebert Inc in Microbial Drug Resistance
- Vol. 4 (3) , 241-246
- https://doi.org/10.1089/mdr.1998.4.241
Abstract
During a surveillance study to determine the relative prevalence of capsular types of Streptococcus pneumoniae and antimicrobial susceptibility of invasive isolates in children S. pneumoniae. These strains were also resistant to trimethoprim/sulfametoxasole (TMP/SMX), chloramphenicol, and tetracycline, and most of them were susceptible to erythromycin. Another 6 of the highly penicillin-resistant strains (serogroups 9 and 14) showed PFGE fingerprints and antimicrobial susceptibility pattern characteristic of a second internationally spread clone (French/Spanish clone) and carried resistance to penicillin and TMP/SMX. The rest of the 9 penicillin-resistant isolates were represented by 7 distinct additional PFGE types. The findings suggest that almost 80% of all highly penicillin resistant strains may have been "imported" into Mexico.Keywords
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