Antibiotic Resistance Profiles of Haemophilus influenzae Isolates from Children in 2016: A Multicenter Study in China

Table 2

Antibiotic resistance rates of β-lactamase-positive and β-lactamase-negative isolates of Haemophilus influenzae.

Antibiotic	β-Lactamase (+)				β-Lactamase (−)
	n	R (%)	I (%)	S (%)	n	R (%)	I (%)	S (%)
Ampicillin	1042	97.0	3.0	0.0	1031	18.7	6.3	75.0
Ampicillin-sulbactam	1042	15.4	0.0	84.6	1031	19.9	0.0	80.1
Cefuroxime	1042	41.6	0.0	51.4	1031	20.8	3.3	75.9
Cefotaxime	1039	6.4	0.0	93.6	1030	5.5	0.0	94.5
Meropenem	1042	0.2	0.0	99.8	1031	0.0	0.0	100
Chloramphenicol	1019	6.3	2.6	91.2	990	2.6	3.7	93.7
SXT	1042	79.8	1.2	18.9	1031	62.2	2.0	35.8
Levofloxacin	1042	0.9	0.0	99.1	1031	0.9	0.0	99.1
Azithromycin	815	55.2	0.0	44.8	802	8.5	0.0	91.5

Note. SXT, sulfamethoxazole-trimethoprim. . S, susceptible; I, intermediate; R, resistant.