Effect of Carbapenem Administration on Establishment of Intestinal Colonization by Vancomycin-Resistant Enterococci and Klebsiella pneumoniae in Mice

Antimicrobial Agents and Chemotherapy
2007.0

Abstract

In a mouse model, ertapenem inhibited the anaerobic intestinal microflora and promoted overgrowth of enterococci, whereas imipenem-cilastatin had no effect on the indigenous microflora. Ertapenem, but not imipenem-cilastatin, promoted modest overgrowth of vancomycin-resistant enterococci when exposure occurred during treatment. Neither agent promoted colonization with extended-spectrum beta-lactamase-producing Klebsiella pneumoniae.

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