Escherichia coli and Klebsiella pneumoniae Producing CTX-M Cephalosporinase from Swine Finishing Barns and Their Association with Antimicrobial Use

January 16, 2013 — 

We report the recovery of Escherichia coli or Klebsiella pneumoniae containing the extended-spectrum β-lactamase gene bla(CTX-M) from 24 of 1,495 (1.6%) swine fecal samples in 8 of 50 (16%) finishing barns located in 5 U.S. states. We did not detect an association between antimicrobial use and recovery of bla(CTX-M).

Mollenkopf DF, Mirecki JM, Daniels JB, Funk JA, Henry SC, Hansen GE, Davies PR, Donovan TS, Wittum TE; Escherichia coli and Klebsiella pneumoniae Producing CTX-M Cephalosporinase from Swine Finishing Barns and Their Association with Antimicrobial Use; Appl Environ Microbiol. 2013 Feb;79(3):1052-4. doi: 10.1128/AEM.03169-12. Epub 2012 Nov 30.