TABLE 3.

Antimicrobial susceptibility patterns of E. lentum^a

Antimicrobial agent	MIC (μg/ml)	No. of strains
		Group A	Group B
Ampicillin	2	25	0
	0.5	0	6
Cefotetan	128	4	0
	64	13	0
	32	8	0
	8	0	6
Cefotaxime	128	4	0
	64	3	0
	32	18	0
	0.5	0	6
Ceftriaxone	128	5	0
	64	14	0
	32	6	0
	1	0	6
Imipenem	2	6	0
	1	19	0
	0.06	0	6
Piperacillin	16	21	0
	8	4	0
	2	0	4
	1	0	2
Clindamycin	4	3	0
	1	9	0
	0.5	13	0
	<0.06	0	6
Metronidazole	2	12	5
	1	13	1
Chloramphenicol	16	20	3
	8	5	3

^aAll strains were β-lactamase negative.