Identification and Expression of Cephamycinase bla CMY Genes in Escherichia coli and Salmonella Isolates from Food Animals and Ground Meat
Open Access
- 1 December 2001
- journal article
- research article
- Published by American Society for Microbiology in Antimicrobial Agents and Chemotherapy
- Vol. 45 (12) , 3647-3650
- https://doi.org/10.1128/aac.45.12.3647-3650.2001
Abstract
Twenty-one Salmonella and 54 Escherichia coli isolates, recovered from food animals and retail ground meats, that exhibited decreased susceptibilities to ceftiofur and ceftriaxone were shown to possess a bla CMY gene. The bla CMY - 4 gene was identified in an E. coli isolate recovered from retail chicken and was further shown to be responsible for resistance to cephalothin, ampicillin, and amoxicillin-clavulanic acid and elevated MICs of ceftriaxone, cefoxitin, and ceftiofur.Keywords
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