Oritavancin Activity against Vancomycin-Susceptible and Vancomycin-Resistant Enterococci with Molecularly Characterized Glycopeptide Resistance Genes Recovered from Bacteremic Patients, 2009-2010

Abstract excerpt

Oritavancin exhibited potent activity against vancomycin-susceptible (MIC(50) and MIC(90), 0.015/0.03 μg/ml) and vanB-carrying E. faecalis isolates (MIC(50) and MIC(90), 0.015 and 0.015 μg/ml). Higher (16- to 32-fold) MIC(50)s and MIC(90)s for vanA-harboring E. faecalis were noted (MIC(50) and MIC(90), 0.25 and 0.5 μg/ml), although oritavancin inhibited all strains at ≤ 0.5 μg/ml. Vancomycin-susceptible and...

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