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. 2004 Feb;42(2):639–644. doi: 10.1128/JCM.42.2.639-644.2004

TABLE 1.

Distribution of RD2 repeat numbers among the 77 prtF1-positive GAS strains subdivided according to their genotypes and phenotypes of erythromycin resistance

Genotype/phenotype of erythromycin resistance No. of strains
Total With indicated number of RD2 repeats:
1 2 3 4 5
erm(B)/cMLS 8 1 1 3 3
erm(B) mef(A)/cMLS 2 2
erm(B)/iMLS-A 12 12
erm(B) mef(A)/iMLS-A 1 1
erm(A)/iMLS-B 13 13
erm(A)/iMLS-C 8 8
mef(A)/M 22 15 1 5 1
Totals
    ER strains 66 16 1 25 23 1
    ES strains 11 2 2 7