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Molecular Characterization of Escherichia coli Isolates Carrying mcr-1, fosA3, and Extended-Spectrum-β-Lactamase
Xiaobo Liu1,2, Ruichao Li2,3, Zhiwei Zheng1,2
1College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
Abstract:
This study surveyed the prevalence of mcr-1 in extended-spectrum-β-lactamase (ESBL)-producing Escherichia coli strains of food origin in China and identified strains that carried mcr-1, fosA3, and ESBL genes, which were carried in various plasmids. The mcr-1 and ESBL genes could be cotransferred by one or more types of plasmids. The presence of these multidrug-resistant E. coli strains in food products might pose a huge threat to public health.
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