TABLE 3.

In vitro susceptibilities of 352 first-isolate E. faecium strains^a

Antimicrobial	No. of strains	MIC50	MIC90	MIC range
RP 59500	352	1	1	0.25–8
Vancomycin	352	512	512	16–>512
Teicoplanin	352	32	128	0.25–>256
Ampicillin	352	128	256	32–>256
Doxycycline	349	8	32	0.12–64
Rifampin	349	8	>128	≤0.06–>128
Chloramphenicol	349	8	8	4–64
Novobiocin	349	0.5	1	0.5–1
Erythromycin	351	>128	>128	1–>128
Ciprofloxacin	298	>128	>128	1–>128

^aSee Table 1, footnote a.