Abstract
Screening of 368 consecutive nonreplicate clinical isolates of Enterobacteriaceae resistant to nalidixic acid and at least one extended-spectrum β-lactam revealed the presence of qnrA, qnrB, and qnrS determinants, and identified novel qnrB variants, in Citrobacter freundii isolates. This study also revealed, for the first time, the linkage of qnrB, armA, and extended-spectrum and/or AmpC-type β-lactamase genes on large conjugative plasmids.
Original language | English |
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Pages (from-to) | 4159-4162 |
Number of pages | 4 |
Journal | Antimicrobial Agents and Chemotherapy |
Volume | 52 |
Issue number | 11 |
DOIs | |
State | Published - Nov 2008 |