title: CTX-M-producing non-Typhi Salmonella spp. isolated from humans, United States.
abstract: CTX-M-type beta-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.
authors.affiliation: National Antimicrobial Resistance Surveillance Team, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA. fwt4@cdc.gov
authors.forename: Maria
authors.initials: M
authors.lastname: Sjölund-Karlsson
authors.forename: Rebecca
authors.initials: R
authors.lastname: Howie
authors.forename: Amy
authors.initials: A
authors.lastname: Krueger
authors.forename: Regan
authors.initials: R
authors.lastname: Rickert
authors.forename: Gary
authors.initials: G
authors.lastname: Pecic
authors.forename: Kathryn
authors.initials: K
authors.lastname: Lupoli
authors.forename: Jason P
authors.initials: JP
authors.lastname: Folster
authors.forename: Jean M
authors.initials: JM
authors.lastname: Whichard
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D002443:Ceftriaxone / Q000494:pharmacology; D018550:Cephalosporin Resistance; D002511:Cephalosporins / Q000494:pharmacology; D006801:Humans; D007223:Infant; D008826:Microbial Sensitivity Tests; D011159:Population Surveillance / Q000379:methods; D012475:Salmonella / Q000145:classification / Q000187:drug effects* / Q000201:enzymology / Q000302:isolation & purification; D012480:Salmonella Infections / Q000453:epidemiology* / Q000382:microbiology; D012486:Salmonella typhimurium / Q000187:drug effects* / Q000201:enzymology / Q000235:genetics / Q000302:isolation & purification; D012703:Serotyping; D014481:United States / Q000453:epidemiology; D018440:beta-Lactam Resistance; D001618:beta-Lactamases / Q000096:biosynthesis* / Q000235:genetics
chemical_list: D000900:Anti-Bacterial Agents; D002511:Cephalosporins; D002443:Ceftriaxone; C053503:ceftiofur; C473109:beta-lactamase CTX-M-15; D001618:beta-Lactamases