Evidence for recent acquisition and successful transmission of blaCTX-M-15 in Salmonella enterica in South Korea

ABSTRACT We identified two distinct bla CTX-M -bearing and five distinct bla CMY-2 -bearing genetic structures located on plasmids from Salmonella enterica and Escherichia coli isolates ( n = 35) collected from chickens in South Korea. All Salmonella plasmids shared a common replicon, bla CTX-M-15 transposon, and core resistance phenotype, while E. coli bla CTX-M-15 plasmids included four distinct replicons.