Emergence of Enterobacteriaceae isolates producing CTX-M extended-spectrum beta-lactamase in Austria

Alexandra Eisner, Elizabeth J Fagan, Gebhard Feierl, Harald H Kessler, Egon Marth, David M Livermore, Neil Woodford

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)


Among 149 extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae isolates collected from patients in southeast Austria from 1998 to 2004, 38 Escherichia coli isolates and 11 Klebsiella spp. were CTX-M producers. The proportion of CTX-M-producers among all ESBL producers rose from 0% in 1998 to 58% in 2004. In general, CTX-M-producers had heterogeneous pulsed-field gel electrophoresis patterns, but one E. coli isolate was identical to a United Kingdom epidemic CTX-M-15-producing strain, although no epidemiological link with the United Kingdom was apparent.
Original languageEnglish
Pages (from-to)785-787
Number of pages3
JournalAntimicrobial Agents and Chemotherapy
Issue number2
Publication statusPublished - Feb 2006


  • Electrophoresis, Gel, Pulsed-Field
  • Enterobacteriaceae
  • Escherichia coli Proteins
  • Humans
  • beta-Lactamases

Cite this