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Interpretive criteria for disk diffusion susceptibility testing of sparfloxacin
European Journal of Clinical Microbiology & Infectious Diseases, 1991Sparfloxacin disk susceptibility test criteria for the NCCLS and ICS/DIN methods were determined by testing 400 bacterial wild-type isolates. Disks containing 5 micrograms of the drug could be used satisfactorily in both procedures. The following interpretive zone size breakpoints for the NCCLS and ICS/DIN methods were proposed: less than or equal to ...
Kayser FH, Wüst J
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A New Test of Disk-Diffusion to Help in Staphylococci Identification
Archives of Medical Research, 2005A modified carbohydrate fermentation test (MCFT) of disk-diffusion assay was performed using a peptone-free agar medium, in order to improve the identification of clinical staphylococci species. Results were compared with the standard method of carbohydrate fermentation in tubes (SCFT) containing methyl red broth. MCFT was able to identify correctly 12
Roberto, Rivera-Sánchez +3 more
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In Vitro Studies with Cefotaxime: Disk Diffusion Susceptibility Tests
Journal of Clinical Microbiology, 1982Until recently two sets of conflicting interpretive criteria existed for use with the standardized 30-μg cefotaxime diffusion disk [National Committee for Clinical Laboratory Standards (NCCLS) M2-A2S, supplement 1; product information package insert for Claforan (cefotaxime sodium), edition 10/81.] The latter criteria recently were ...
S, Shadomy, E L, Chan
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European Journal of Clinical Microbiology & Infectious Diseases, 1996
The activity of the new fluoroquinolone trovafloxacin (CP-99,219) was compared with that of ciprofloxacin and ofloxacin against 517 bacterial isolates representing 50 different species. Against members of the family Enterobacteriaceae, all three drugs showed good in vitro activity.
P C, Fuchs +3 more
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The activity of the new fluoroquinolone trovafloxacin (CP-99,219) was compared with that of ciprofloxacin and ofloxacin against 517 bacterial isolates representing 50 different species. Against members of the family Enterobacteriaceae, all three drugs showed good in vitro activity.
P C, Fuchs +3 more
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Journal of Clinical Microbiology, 1989
The susceptibilities of 221 clinical isolates to ofloxacin were tested simultaneously by broth microdilution and disk diffusion methods with commercially prepared 5-micrograms ofloxacin disks. The acceptability of the following previously proposed zone diameter breakpoints was confirmed: greater than or equal to 16 mm, susceptible; 13 to 15 mm ...
P C, Fuchs +3 more
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The susceptibilities of 221 clinical isolates to ofloxacin were tested simultaneously by broth microdilution and disk diffusion methods with commercially prepared 5-micrograms ofloxacin disks. The acceptability of the following previously proposed zone diameter breakpoints was confirmed: greater than or equal to 16 mm, susceptible; 13 to 15 mm ...
P C, Fuchs +3 more
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Diagnostic Microbiology and Infectious Disease, 1987
Coumermycin was found to be extremely active against methicillin-susceptible and -resistant Staphylococcus spp. (MIC 90, less than or equal to 0.002 microgram/ml). Vancomycin and coumermycin were equally active against Streptococcus spp. (MIC 90s, 0.5 microgram/ml) and both were superior to fusidic acid (MIC 90, 8.0 micrograms/ml).
R N, Jones, A L, Barry
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Coumermycin was found to be extremely active against methicillin-susceptible and -resistant Staphylococcus spp. (MIC 90, less than or equal to 0.002 microgram/ml). Vancomycin and coumermycin were equally active against Streptococcus spp. (MIC 90s, 0.5 microgram/ml) and both were superior to fusidic acid (MIC 90, 8.0 micrograms/ml).
R N, Jones, A L, Barry
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Interpretive criteria for DU-6859a disk diffusion tests using 5-μg disks
Diagnostic Microbiology and Infectious Disease, 1994In vitro disk diffusion test interpretive criteria were developed for DU-6859a, a new difluorinated quinolone, using a 5-micrograms disk. Included in the 494 organisms tested were 84 (17%) ciprofloxacin-resistant > or = 4 micrograms/ml) clinical isolates.
R N, Jones, D M, Johnson, M E, Erwin
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Disk Diffusion Susceptibility Tests: Need for Laboratory-Specific Breakpoints
Scandinavian Journal of Infectious Diseases, 1995Significant changes were observed in the measured resistance levels of Escherichia coli and Staphylococcus aureus when the Biodisk disk susceptibility test method used in 1992 was replaced with another commercial method, Oxoid. For example, when non-species-specific breakpoints were used, the frequency of cephalotin-resistant E.
R, Manninen, E, Eerola, P, Huovinen
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Disk diffusion antimicrobial susceptibility testing for clinical and epidemiologic purposes
American Journal of Infection Control, 1985Antimicrobial susceptibility testing is one of the most important and useful tests performed by the clinical microbiology laboratory. The value of disk susceptibility testing in epidemiology is enhanced by its simplicity of performance, reproducibility of results, and ability to indicate whether a single strain is likely to be the cause of many ...
D R, Graham +3 more
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Agar disk diffusion susceptibility tests with cilofungin (LY 121019)
Medical Mycology, 1991Cilofungin (LY 121019) is a semi-biosynthetic lipopeptide agent which is active both in vitro and in vivo against isolates of Candida species. The purpose of this study was to demonstrate the usefulness of experimental 10- and 20-micrograms cilofungin disks in predicting probable in vitro susceptibility to this drug.
A, Espinel-Ingroff, S, Shadomy, S, White
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