Gentamicin diffusion in Mueller-Hinton agar plates from different manufacturers
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چکیده
منابع مشابه
Evaluation of Mueller-Hinton agar for disk diffusion susceptibility tests.
Twelve lots of commercially prepared Mueller-Hinton agar from four medium manufacturers were evaluated for performance with recommended quality control organisms, medium pH, agar depth and uniformity, and characteristics of the zones of inhibition. Only 2 of 12 lots were acceptable for disk diffusion susceptibility tests. Significant problems were observed with the preparation and pouring of th...
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Haemophilus Test Media (HTM) were prepared from 12 different lots of Mueller-Hinton agar. When tested with Haemophilus influenzae ATCC 49247, most lots were initially rejected because of small zones of inhibition for cefaclor, cefuroxime, and cefamandole disks, whereas five other drugs performed satisfactorily on the 11 lots that supported growth of the control strain. At the same time, tests o...
متن کاملEffect of storage of Mueller-Hinton agar plates on zone sizes for antimicrobial testing.
The length of time Mueller-Hinton agar plates can be stored at 4 C without affecting the size of zones of inhibition in susceptibility testing by the Bauer-Kirby method was studied. It was found that these plates can be stored for 3 weeks at 4 C without an appreciable affect on zone sizes. Storage of plates in sealed plastic bags did not alter the results significantly. The findings indicate th...
متن کاملSelection of a reference lot of Mueller-Hinton agar.
A collaborative study was undertaken to evaluate the performance of currently marketed Mueller-Hinton agars from seven manufacturers by replicate disk diffusion tests with standard quality control strains. Identification of the manufacturers was concealed, and the resulting data were evaluated for the selection of a physical reagent standard against which the performance of future production lo...
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They also described morphologically that vacuoles were smaller when infected cells were treated with lovastatin compared with untreated cells. However, they did not use a quantitative method to prove this effect. Our method, in which we coupled imaging and software analysis, allows quantitative determination of differences in vacuole size and number. Interestingly, pravastatin did not have any ...
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ژورنال
عنوان ژورنال: Journal of Antimicrobial Chemotherapy
سال: 2001
ISSN: 1460-2091
DOI: 10.1093/jac/47.4.496