期刊
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
卷 59, 期 8, 页码 5026-5028出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/AAC.00775-15
关键词
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资金
- Chinese National Key Basic Research and Development 973 Program [2013CB127200]
- Health and Medical Research Fund of the Food and Health Bureau, Hong Kong [12111612, 13121412]
The extended-spectrum-beta-lactamase (ESBL) determinant CTX-M-55 is increasingly prevalent in Escherichia coli but remains extremely rare in Salmonella. This study reports the isolation of a plasmid harboring the bla(CTX-M-55) element in a clinical Salmonella enterica serotype Typhimurium strain resistant to multiple antibiotics. This plasmid is genetically identical to several known IncI2-type elements harbored by E. coli strains recovered from animals. This finding indicates that IncI2 plasmids harboring the bla(CTX-M) genes may undergo cross-species migration among potential bacterial pathogens, with E. coli as the major source of such elements.
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