Molecular Characteristics of Extended Spectrum β-Lactamases in<i>Escherichia coli</i>and<i>Klebsiella pneumoniae</i>and the Prevalence of<i>qnr</i>in Extended Spectrum β-Lactamase Isolates in a Tertiary Care Hospital in Korea

Abstract excerpt

PURPOSE: Extended spectrum beta-lactamases (ESBLs) are cephalosporinases that confer resistance to a wide variety of oxyimino cephalosporins and create serious therapeutic problems. In addition, the quinolone resistance qnr genes are becoming increasingly prevalent in clinical isolates, some of which also produce ESBL. This study was designed to evaluate the occurrence and genotypic distribution of ESBL producing...

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