CTX-M–type β-lactamases are increasing among US Enterobacteriaceae isolates. Of 2,165 non-Typhi Salmonella isolates submitted in 2007 to the National Antimicrobial Resistance Monitoring System, 100 (4.6%) displayed elevated MICs ( > 2 mg/L) of ceftriaxone or ceftiofur. Three isolates (serotypes Typhimurium, Concord, and I 4,5,12:i:–) contained bla CTX-M-5 , bla CTX-M-15 , and bla CTX-M-55/57 , respectively.
All Keywords
【저자키워드】 antimicrobial resistance, Bacteria, United States, Salmonella, dispatch, CTX-M beta-lactamase,
【저자키워드】 antimicrobial resistance, Bacteria, United States, Salmonella, dispatch, CTX-M beta-lactamase,