TABLE 2.

Antimicrobial activities of the various antimicrobials against all anaerobes (556 isolates) tested

Antimicrobial agent	MIC (μg/ml)				%Sa
	Range	Mode	50%	90%
Piperacillin-tazobactam	0.06–32	0.06	0.12	2	100
Ampicillin-sulbactam	0.03–64	1	1	8	92
Penicillin G	0.015–32	32	8	32	19
Cefoxitin	0.015–32	4	4	16	94
Imipenem	0.015–8	0.03	0.06	0.25	99.8
Meropenem	0.015–32	0.12	0.12	0.5	99.1
Ciprofloxacin	0.015–32	4	4	32	25
Trovafloxacin	0.015–16	0.25	0.25	2	94
Clindamycin	0.015–16	16	0.25	16	77
Metronidazole	0.12–64	0.5	0.5	2	99.1

^aPercent susceptible.