2010•Journal of Clinical MicrobiologyOpen access

Emergence of Erythromycin- and Clindamycin-Resistant Streptococcus pyogenes emm 90 Strains in Hawaii

I‐Ming Chen, Pakieli Kaufisi, Güliz Erdem

Abstract

We identified 12 erythromycin- and clindamycin-resistant emm 90 group A streptococcus (GAS) isolates during a retrospective invasive disease survey in Hawaii. A comparison with 20 type-matched isolates showed all resistant isolates to be emm 90.4b with the constitutive or inducible macrolide-lincosamide-streptogramin B resistance phenotype (cMLS(B) or iMLS(B)). All isolates had the same pulsed-field gel electrophoresis (PFGE) pattern, suggesting clonal spread.

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Key concepts: Erythromycin, Clindamycin, Streptococcus pyogenes, Microbiology, Pulsed-field gel electrophoresis, Biology, Streptococcaceae, Streptococcus