TABLE 5.

MIC data for β-lactamase-negative and TEM-1- and ROB-1-producing H. influenzae strains^a

Drug	MIC result (μg/ml) for strain type:
	TEM-1			ROB-1			β-Lactamase negative
	50%	90%	Range	50%	90%	Range	50%	90%	Range
Ampicillin	≥32	≥32	2-≥32	≥32	≥32	8-≥32	0.25	0.50	0.12-≥32
Amoxicillin-clavulanate	1	2	0.12-≥8	0.5	1.0	0.25-2.0	0.5	1	0.12-≥8
Cefaclor	4	16	0.5-≥128	16	64	2.0-≥128	2	8	0.5-≥128
Cefpodoxime	0.06	0.12	≤0.015-2.0	0.06	0.06	≤0.015-0.25	0.06	0.12	≤0.015-4

^aData are from Farrell et al. (48).