منابع مشابه
Extended-spectrum beta-lactamase-producing organisms.
Extended-spectrum beta-lactamases (ESBLs), which hydrolyse extended-spectrum cephalosporins and are inhibited by clavulanic acid, are spreading among Enterobacteriaceae. The CTX-M enzymes are replacing SHV and TEM enzymes as the prevalent type of ESBLs, principally in community-acquired infections caused by Escherichia coli. Associated infectious syndromes include mainly urinary tract infection...
متن کاملActivity of beta-lactam beta-lactamase inhibitor combinations against extended spectrum Beta-lactamase producing Enterobacteriaceae in urinary isolates.
OBJECTIVE To determine the susceptibility pattern of beta-lactam beta-lactamase inhibitor combinations against extended-spectrum beta-lactamase (ESBL) producing Enterobacteriaceae in urinary isolates. STUDY DESIGN Observational study. PLACE AND DURATION OF STUDY Ziauddin University Hospital, Karachi, from February to October 2008. METHODOLOGY A total of 190 consecutive non-duplicate isola...
متن کاملPolyclonal diffusion of beta-lactamase-producing Enterococcus faecium.
We describe here the isolation of 8 beta-lactamase-producing multidrug-resistant Enterococcus faecium isolates in 2010. All strains showed diverse pulsed-field gel electrophoresis (PFGE) profiles, all belonging to the same clonal complex, CC17. By PCR and hybridization experiments, the entire blaZ-blaI-blaR1 operon was found. The beta-lactamase activity was demonstrated at a high inoculum and i...
متن کاملComparison of two beta-lactamase-producing strains of Streptococcus faecalis.
A second strain of enterococcus (PA) producing beta-lactamase (Bla+ phenotype) was compared with the previously reported Bla+ enterococcus, strain HH22. As with the original strain, there was a marked inoculum effect when PA was tested with penicillin, ampicillin, and piperacillin; no difference was noted with methicillin, cephalothin, imipenem, or vancomycin; the difference with ticarcillin wa...
متن کاملEmergence of multi-drug resistance among beta-lactamase producing Salmonella.
Multi-drug resistant strains of Salmonella isolated from blood and bone marrow cultures of pyrexial patients received from physicians, hospitals and different clinics were studied from May to November, 1993. Of 2143 samples collected, 424(20%) cases yielded the growth of different organisms. Out of these 266(63%) were positive for Salmonella strains. The strains isolated were Salmonella typhi 2...
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ژورنال
عنوان ژورنال: Antimicrobial Agents and Chemotherapy
سال: 1992
ISSN: 0066-4804,1098-6596
DOI: 10.1128/aac.36.11.2355