Tentative interpretive standards for agar disk diffusion antimicrobial susceptibility testing of cefoperazone
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منابع مشابه
Tentative interpretive standards for agar disk diffusion antimicrobial susceptibility testing of cefoperazone.
Cefoperazone is a new cephalosporin with a very wide spectrum of activity, including activity against Pseudomonas aeruginosa. It has less activity on enterococci and Acinetobacter. Of the 459 selected bacterial strains tested in this study, only 1.5% (7 strains and 6 genera) had minimum inhibitory concentrations of greater than or equal to 128 micrograms/ml. For a minimum inhibitory concentrati...
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Moxalactam (LY127935; 6059-S) is a new beta-lactam antibiotic. We propose tentative zone standards for agar diffusion susceptibility tests with 30-microgram disks. The final selection of minimal inhibitory concentration breakpoints for definition of resistant and susceptible categories must await clinical experience with this drug. Some of the clinical questions to be answered are defined. A mo...
متن کاملSetting interpretive breakpoints for antimicrobial susceptibility testing using disk diffusion.
Antimicrobial susceptibility testing plays a key role in clinical microbiology. The disk diffusion test dates back to the 1940s and became standardised from the 1950s, with the International Collaborative Study (ICS) and National Committee for Clinical Laboratory Standards (NCCLS) as the two major standards. Interlaboratory variation of disk test results was recognised early but has never been ...
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Standardized broth microdilution and disk diffusion susceptibility tests for pefloxacin were performed on 585 clinical isolates. The 5-micrograms pefloxacin disk is recommended, and the following breakpoints are proposed: susceptible, greater than or equal to 19 mm (MIC, less than or equal to 2.0 micrograms/ml); resistant, less than or equal to 15 mm (MIC, greater than 4.0 micrograms/ml); and i...
متن کاملCefotaxime: in vitro activity and tentative interpretive standards for disk susceptibility testing.
Tested against 9,412 recent clinical isolates, cefotaxime exhibited 8 to 64 times greater activity against the Enterobacteriaceae than did cephalothin and two to four times greater activity against Pseudomonas aeruginosa, but only one-half to one-eighth the activity of cephalothin against staphylococci. Using 420 different clinical isolates, but with comparable minimal inhibitory concentration ...
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ژورنال
عنوان ژورنال: Journal of Clinical Microbiology
سال: 1982
ISSN: 0095-1137,1098-660X
DOI: 10.1128/jcm.15.5.769-776.1982