qnr prevalence in ceftazidime-resistant Enterobacteriaceae isolates from the United States

A. Robicsek, J. Strahilevitz, D. F. Sahm, G. A. Jacoby, D. C. Hooper*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

521 Scopus citations

Abstract

We screened 313 ceftazidime-resistant Enterobacteriaceae isolates obtained in the United States from 1999 to 2004 for all three known qnr genes. A qnr gene was present in 20% of Klebsiella pneumoniae isolates, 31% of Enterobacter sp. isolates, and 4% of Escherichia coli isolates. qnrA and qnrB occurred with equivalent frequencies and, except for qnrB in enterobacters, were stable over time. qnrS was absent.

Original languageAmerican English
Pages (from-to)2872-2874
Number of pages3
JournalAntimicrobial Agents and Chemotherapy
Volume50
Issue number8
DOIs
StatePublished - Aug 2006
Externally publishedYes

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