Comparative Analysis of IncHI2 Plasmids Carrying blaCTX-M-2 or blaCTX-M-9 from Escherichia coli and Salmonella enterica Strains Isolated from Poultry and Humans▿

摘要

Salmonella enterica blaCTX-M-2 and blaCTX-M-9 plasmid backbones from isolates from Belgium and France were analyzed. The blaCTX-M-2-plasmids from both human and poultry isolates were related to the IncHI2 pAPEC-O1-R plasmid, previously identified in the United States in avian Escherichia coli strains; the blaCTX-M-9 plasmids were closely related to the IncHI2 R478 plasmid.