Various Sequence Types of Enterobacteriaceae Isolated from Commercial Chicken Farms in China and Carrying the blaNDM-5 Gene

A total of 108 meropenem-resistant Enterobacteriaceae isolates were obtained from 1,658 rectal swabs collected from 15 unrelated commercial chicken farms in China between 2014 and 2016. These samples yielded 16 Escherichia coli and 2 Klebsiella pneumoniae isolates of diverse sequence types carrying a bla(NDM-5)-bearing IncX3 plasmid. K. pneumoniae strain sequence type 709 (ST709) has two bla(NDM-5)-carrying plasmids that were transferred together to E.coli.