Table 2.

Antimicrobial susceptibility test results of 317 isolates of S. pneumoniae isolated in Urumqi, 2014–2021.

Antimicrobials	Number	Susceptibility			MIC (mg/L)
		S (%)	I (%)	R (%)	MIC50	MIC90	MIC range
Penicillin	317				1	2	≤0.06–≥16
Oral	317	7.9	63.5	28.6
Parenteral, non-meningitis	317	97.5	1.3	1.3
Parenteral, meningitis	317	8.2	–	91.8
Ceftriaxone	317				1	1	≤0.06–≥4
Non-meningitis	317	91.8	3.8	4.4
Meningitis	317	40.1	51.7	8.2
Cefotaxime	317				1	2	≤0.06–≥4
Non-meningitis	317	87.4	6.6	6
Meningitis	317	29	58.4	12.6
Erythromycin	315	3.2	0.9	95.9	≥ 1	≥ 1	≤0.25–>8
Clindamycin	317	8.8	1.0	90.2	–	–	–
Sulfamethoxazole-trimethoprim	292	11.3	9.9	78.8	8	≥ 16	≤0.25–≥16
Tetracycline	316	9.8	1.3	88.9	≥ 16	≥ 16	≤1–>16
Chloramphenicol	292	92.1	–	7.9	≤ 2	4	≤0.06–≥32
Levofloxacin	317	99.7	0.3	0	≤ 0.5	1	≤0.06–4
Vancomycin	317	100	–	–	≤ 1	≤ 1	≤0.5–8
Moxifloxacin	317	100%	0	0	≤ 0.25	0.25	≤0.25–1
Amoxicillin	317	89.6	7.3	3.1	1	3	≤0.06–≥8
Meropenem	312	79.5	15.4	5.1	0.25	0.5	≤0.06–2
Linezolid	273	99.3	–	–	≤ 2	≤ 2	≤1–≥16

S, susceptible; I, intermediate; R, resistant; -, no such interpretation standards.