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. 2010 Apr 14;48(6):2275–2277. doi: 10.1128/JCM.00663-10

TABLE 1.

Beta-hemolytic streptococcal isolates included in the study and their ERY and CC susceptibilities and resistance determinantsa

Group Total no. of isolates No. of ERY-resistant isolates No. of constitutively CC-resistant isolates No. of constitutively CC-resistant isolates with indicated resistance determinant
No. of inducibly CC-resistant isolates No. of inducibly CC-resistant isolates with indicated resistance determinant
No. of CC-resistant isolates with neither resistance determinant
ermTR ermB ermTR ermB
A 20 12 2 2 0 10 9 0 1
B 32 32 16 8 8 16 13 0 0
C 15 1 0 NA NA 1 1 0 0
F 10 0 0 NA NA 0 NA NA NA
G 23 21 2 2 0 19 16 1 3
a

NA, not applicable.