title: Two different extended-spectrum beta-lactamases (ESBLs) in one of the first ESBL-producing salmonella isolates in Poland.
abstract: Two extended-spectrum beta-lactamase (ESBL)-producing salmonella isolates, Salmonella enterica serovar Enteritidis and Salmonella enterica serovar Typhimurium, were analyzed. Both isolates produced the CTX-M-3 ESBL; however, their bla(CTX-M-3) genes were located on different plasmids. The serovar Typhimurium isolate also expressed another ESBL, SHV-2a, and probably the two ESBL genes had been acquired independently by the strain.
authors.affiliation: Sera & Vaccines Central Research Laboratory, Chelmska 30/34, 00-725 Warsaw, Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Baraniak
authors.forename: Ewa
authors.initials: E
authors.lastname: Sadowy
authors.forename: Waleria
authors.initials: W
authors.lastname: Hryniewicz
authors.forename: Marek
authors.initials: M
authors.lastname: Gniadkowski
mesh_terms: D007525:Isoelectric Focusing; D008826:Microbial Sensitivity Tests; D012477:Salmonella enteritidis / Q000187:drug effects / Q000201:enzymology* / Q000235:genetics; D012486:Salmonella typhimurium / Q000187:drug effects / Q000201:enzymology* / Q000235:genetics; D001618:beta-Lactamases / Q000096:biosynthesis* / Q000235:genetics
chemical_list: C417271:beta-lactamase CTX-M-3; C062760:beta-lactamase SHV-2; D001618:beta-Lactamases