Table 2.

MIC₅₀, MIC₉₀, and percentage of nonsusceptibility to different compounds for STs with ≥10 isolates in the period 2000 to 2008^a

ST no.	Penicillin		Amoxicillin		Cefotaxime		Erythromycin
	MIC50/MIC90	% NS	MIC50/MIC90	% NS	MIC50/MIC90	% NS	MIC50/MIC90	% NS
63 (n = 10)	0.03/0.25	40.0	≤0.06/0.5	0.0	0.03/0.25	0.0	≥128/≥128	90.0
81 (n = 11)	1/2	90.9	1/2	0.0	0.5/1	9.1	≥128/≥128	18.2
193 (n = 24)	≤0.015/0.03	0.0	≤0.06/≤0.06	0.0	≤0.015/0.06	0.0	≥128/≥128	95.8
199 (n = 20)	≤0.015/0.06	5.0	≤0.06/≤0.06	0.0	≤0.015/0.03	0.0	≤0.12/≤0.12	10.0
202 (n = 33)	≤0.015/0.03	0.0	≤0.06/≤0.06	0.0	≤0.015/0.03	0.0	≥128/≥128	66.7
276 (n = 51)	1/1	96.1	0.5/2	2.0	1/1	2.0	≥128/≥128	96.1
320 (n = 23)	2/4	100	8/8	87.0	1/2	43.5	≥128/≥128	100
878 (n = 46)	0.5/1	97.8	0.5/1	2.2	0.5/1	2.2	≥128/≥128	100
994 (n = 12)	≤0.015/0.03	0.0	≤0.06/≤0.06	0.0	≤0.015/≤0.015	0.0	≤0.12/≤0.12	0.0
1201 (n = 95)	≤0.015/≤0.015	0.0	≤0.06/≤0.06	0.0	≤0.015/≤0.015	0.0	≤0.12/≤0.12	5.3
2013 (n = 12)	0.25/0.5	100	0.25/0.5	0.0	0.12/0.5	0.0	≤0.12/≤0.12	8.3
2108 (n = 20)	0.03/0.25	40.0	≤0.06/0.25	0.0	0.03/0.25	0.0	≥128/≥128	95.0
4461 (n = 11)	0.25/0.5	100	0.25/1	0.0	0.12/0.5	0.0	≤0.12/≤0.12	9.1
Other (n = 103)b	0.03/0.25	22.3	≤0.06/0.25	1.0	0.03/0.25	1.0	8/≥128	52.4

^aNS, nonsusceptibility.

^bIncludes 73 different STs.