Detection of mutations in the gyrA and parC genes in Escherichia coli isolates carrying plasmid-mediated quinolone resistance genes from diseased food-producing animals.

Abstract excerpt

In this study, the prevalence of plasmid-mediated quinolone resistance (PMQR) was investigated in 495 Escherichia coli isolates from diseased food-producing animals in Guangdong province, China. The quinolone resistance-determining regions (QRDRs) of the gyrA and parC genes were analysed for mutations in 55 isolates harbouring only oqxAB and all isolates harbouring other PMQR genes. Overall, 282 (57.0 %) E. coli...

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