| emergence of ctx-m-15 extended-spectrum beta-lactamase-producing klebsiella pneumoniae isolates in bosnia and herzegovina. | fifty-seven nosocomial klebsiella pneumoniae isolates producing extended-spectrum beta-lactamases (esbls) were collected between february 2007 and november 2007 in different wards of the sarajevo (bosnia-herzegovina) reference hospital. these isolates comprise two major epidemic pulsed-field electrophoresis-defined clones plus two minor clones. in addition to the esbl-mediated resistance, all strains uniformly showed resistance to ciprofloxacin, gentamicin and tobramycin. the beta-lactamases inv ... | 2010 | 19686282 |