Emergence of multidrug-resistant Klebsiella pneumoniae isolates producing VIM-4 metallo-β-lactamase, CTX-M-15 extended-spectrum β-lactamase, and CMY-4 AmpC β-lactamase in a Tunisian University Hospital

Klebsiella pneumoniae clinical isolates resistant to carbapenems were recovered from 11 patients in the hospital of Sfax, Tunisia. The isolates were closely related as shown by pulsed-field gel electrophoresis, and they produced VIM-4 metallo-enzyme, CTX-M-15 extended-spectrum β-lactamase, and CMY-4 AmpC enzyme. The blaVIM-4 gene is part of a class 1 integron. Copyright © 2006, American Society for Microbiology. All Rights Reserved.