TABLE 2.

RQ-mPCR results and EM MICs in 200 pneumococcal isolates^a

RQ-mPCR result	EM MIC distribution (no. of isolates)
	<0.5 μg/ml	1 μg/ml	2 μg/ml	4 μg/ml	8 μg/ml	16 μg/ml	≥32 μg/ml
None	56
mef(A) only		4	15	17	9	1
erm(B) only				3	7	10	67
mef(A) + erm(B)					1	2	8

^aThe CLSI EM MIC breakpoints for S. pneumoniae are as follows: susceptible, ≤0.25 μg/ml; intermediate, 0.5 μg/ml; and resistant, ≥1 μg/ml (7).