Simple test of synergy between ampicillin and vancomycin for resistant strains of Enterococcus faecium
نویسندگان
چکیده
منابع مشابه
Heat tolerance of vancomycin resistant Enterococcus faecium.
The heat tolerance of 27 Enterococcus faecium isolates in water was studied. Stationary phase cultures including vancomycin resistant and sensitive clinical and food isolates were exposed to heat at 60 degrees, 65 degrees, 71 degrees, and 80 degrees C for one, three, 10, and 30 minutes and the log10 reductions in bacterial counts were determined. Exposure at 71 degrees and 80 degrees C resulted...
متن کاملThe effect of vancomycin on the structure of vancomycin-susceptible and -resistant Enterococcus faecium strains.
Williamson et al. previously showed that a strain of Enterococcus faecium with low-level resistance to vancomycin grown in the presence of one-half the MIC of vancomycin showed bizarre cell forms with abnormal septa without apparent cell division (3). In the current work, 10 strains of E. faecium susceptible to vancomycin (MIC, ,2 mg/ml) and 10 resistant strains (MIC, .400 mg/ml) which were als...
متن کاملAntibiotic treatment of experimental endocarditis due to vancomycin- and ampicillin-resistant Enterococcus faecium.
We compared ciprofloxacin, rifampin, and gentamicin treatments, alone and in combination, for 5 days in the therapy of experimental aortic valve endocarditis in rats caused by a clinical isolate of vancomycin-resistant Enterococcus faecium. The MICs and MBCs of vancomycin, ciprofloxacin, rifampin, and gentamicin were 250 and > 1,000, 3.1 and 6.3, 0.098 and 1.6, and 12.5 and > 50 micrograms/ml, ...
متن کاملHigh occurrence of esp among ampicillin-resistant and vancomycin-susceptible Enterococcus faecium clones from hospitalized patients.
The ability to colonize patients successfully may be essential for the emergence and spread of resistant nosocomial strains. We determined the presence of Esp, a surface protein involved in colonization ability in Enterococcus faecalis, in 96 Enterococcus faecium isolates from hospitalized patients (77 PFGE clones), 33 faecal isolates from healthy volunteers (32 clones) and 20 environmental iso...
متن کاملColonial variation in vancomycin resistant Enterococcus faecium.
Vancomycin resistant enterococci are increasingly being isolated from inpatients. This report describes the colonial variation present in most isolates of vancomycin resistant Enterococcus faecium obtained at this hospital. Colonial variants within the same culture were indistinguishable by antimicrobial susceptibility, biochemical reactions, and ribotyping. Failure to appreciate this colonial ...
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ژورنال
عنوان ژورنال: Journal of Clinical Microbiology
سال: 1994
ISSN: 0095-1137,1098-660X
DOI: 10.1128/jcm.32.11.2837-2839.1994