title: High levels of antimicrobial coresistance among extended-spectrum-beta-lactamase-producing Enterobacteriaceae.
abstract: We compared the susceptibility of 312 extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae isolates with that of 1,216 ESBL nonproducers. Of ESBL producers, 25% were susceptible to gentamicin, 30% to trimethoprim-sulfamethoxazole, 41% to ciprofloxacin, and 60% to piperacillin-tazobactam. ESBL nonproducers were more often susceptible to these agents. ESBL-producing Enterobacteriaceae represent a major source of resistance to various antibiotics.
authors.affiliation: Division of Epidemiology, Tel Aviv Sourasky Medical Center, 6 Weizmann St., Tel Aviv 64239, Israel. schwm@massmed.org
authors.forename: Mitchell J
authors.initials: MJ
authors.lastname: Schwaber
authors.forename: Shiri
authors.initials: S
authors.lastname: Navon-Venezia
authors.forename: David
authors.initials: D
authors.lastname: Schwartz
authors.forename: Yehuda
authors.initials: Y
authors.lastname: Carmeli
mesh_terms: D003428:Cross Infection / Q000382:microbiology; D024901:Drug Resistance, Multiple, Bacterial; D004755:Enterobacteriaceae / Q000187:drug effects* / Q000201:enzymology*; D004756:Enterobacteriaceae Infections / Q000382:microbiology; D006784:Hospitals, Teaching; D008826:Microbial Sensitivity Tests; D010957:Plasmids / Q000235:genetics; D001618:beta-Lactamases / Q000378:metabolism*; D047090:beta-Lactams / Q000494:pharmacology
chemical_list: D047090:beta-Lactams; D001618:beta-Lactamases