Increase of the M Phenotype among Erythromycin-Resistant Streptococcus pneumoniae Isolates from Spain Related to the Serotype 14 Variant of the Spain 9V -3 Clone
- 1 September 2006
- journal article
- Published by American Society for Microbiology in Antimicrobial Agents and Chemotherapy
- Vol. 50 (9), 3162-3165
- https://doi.org/10.1128/aac.00269-06
Abstract
Between 1998 and 2003 the rate of erythromycin resistance among pneumococci in Spain was 34.4%. Although the MLS(B) phenotype was prevalent (94.7%), the rate of the M phenotype increased from 3.3% to 8.9% (P < 0.01). Clonal dissemination of mef(E)-carrying strains of serotype 14 variant of the Spain(9V)-3 clone was the major contributor to this increase.Keywords
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