IncX3 Epidemic Plasmid Carrying bla NDM-5 in Escherichia coli from Swine in Multiple Geographic Areas in China

This is the authors' abstract. We don't add key points for this paper.

Six imported pigs originating from Guangdong, Henan, and Hunan provinces in China during October 2015 to February 2017 were cultured and found to be positive for meropenem-resistant Escherichia coli . The samples yielded 9 E. coli isolates of diverse sequence types carrying bla NDM-5 on IncX3 (8 isolates from 5 farms) or IncFII (1 isolate from 1 farm) plasmids. The mcr-1 gene was coharbored by 4 isolates. The IncX3 plasmids (∼46 kb) carrying bla NDM-5 were identical or nearly identical to each other.