Article
Prevalence and mechanisms of macrolide resistance in Streptococcus pyogenes in Santiago, Chile.
Antimicrobial agents and chemotherapy - 1 Jan 2001
Palavecino E L, Riedel I, Berrios X, Bajaksouzian S, Johnson D, Kaplan E, Jacobs M R
Abstract excerpt
Thirty-two macrolide-resistant Streptococcus pyogenes isolates were found among 594 clinical isolates collected from 1990 to 1998 in Santiago, Chile, for an overall prevalence of 7.2%. Among the 32 resistant isolates, 28 (87.5%) presented the M phenotype and 4 (12. 5%) presented the MLS(B) phenotype. Serotyping and pulsed-field gel electrophoresis analysis showed genetic diversity among the resistant isolates.
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