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  • Title: Prevalence and mechanisms of macrolide resistance in Streptococcus pyogenes in Santiago, Chile.
    Author: Palavecino EL, Riedel I, Berrios X, Bajaksouzian S, Johnson D, Kaplan E, Jacobs MR.
    Journal: Antimicrob Agents Chemother; 2001 Jan; 45(1):339-41. PubMed ID: 11120993.
    Abstract:
    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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