| Literature DB >> 20100875 |
Valeria Bortolaia1, Luca Guardabassi, Marcello Trevisani, Magne Bisgaard, Luciano Venturi, Anders Miki Bojesen.
Abstract
We characterized 67 Escherichia coli isolates with reduced susceptibility to cefotaxime or ceftiofur obtained from healthy broilers housed in five Italian farms. The bla(CTX-M-1), bla(CTX-M-32) and bla(SHV-12) beta-lactamase genes were identified on IncI1, IncN, or IncFIB plasmids. Considerable genetic diversity was detected among the extended-spectrum beta-lactamase (ESBL)-producing isolates, and we identified indistinguishable strains in unrelated farms and indistinguishable plasmids in genetically unrelated strains. The detection of highly mobile plasmids suggests a potential animal reservoir for beta-lactamase genes.Entities:
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Year: 2010 PMID: 20100875 PMCID: PMC2849389 DOI: 10.1128/AAC.01361-09
Source DB: PubMed Journal: Antimicrob Agents Chemother ISSN: 0066-4804 Impact factor: 5.191