Article
Relationship between phenotypic and genotypic florfenicol resistance in Escherichia coli.
Antimicrobial agents and chemotherapy - 1 Oct 2004
Singer Randall S, Patterson Sheila K, Meier Anne E, Gibson Jessica K, Lee Hannah L, Maddox Carol W
Abstract excerpt
This study evaluated the relationship between florfenicol resistance and flo genotypes in 1,987 Escherichia coli isolates from cattle. The flo gene was detected in 164 isolates, all of which expressed resistance to florfenicol at MICs of >/=256 microg/ml. The florfenicol MICs for all isolates that lacked flo were </=16 microg/ml.
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