Distribution of Subclasses MefA and MefE of the MefA Gene Among Clinical Isolates of Macrolide-resistant (M-phenotype) Streptococcus Pneumoniae, Viridans Group Streptococci, and Streptococcus Pyogenes
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The distribution of subclasses mefA and mefE of the mefA gene among 116 M-phenotype streptococci was as follows: pneumococci (38 strains had mefE and 4 mefA), viridans streptococci (49 mefE and 1 mefA), and Streptococcus pyogenes (24 mefA). Spain(9V)-3-14 and England(14)-9 clones of serotype 14 were dominant among pneumococci.
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