نتایج جستجو برای: broth microdilution tests

تعداد نتایج: 348078  

2008

Antifungal susceptibility tests are performed on fungi that cause disease, especially if they belong to a species exhibiting resistance to commonly used antifungal agents. Antifungal susceptibility testing is also important for resistance surveillance, for epidemiological studies and for comparing the in-vitro activity of new and existing agents. Dilution methods are used to establish the MICs ...

Journal: :Journal of clinical microbiology 1986
P C Fuchs A L Barry R N Jones C Thornsberry

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...

Journal: :Applied and environmental microbiology 2008
Sigrid Mayrhofer Konrad J Domig Christiane Mair Ulrike Zitz Geert Huys Wolfgang Kneifel

In recent years, the absence of acquired antimicrobial resistance has become an important criterion to evaluate the biosafety of lactobacilli used as industrial starter or probiotic cultures. At present, however, standards for susceptibility testing of Lactobacillus strains or approved guidelines for interpreting the test results are not available. Hence, this study was carried out to contribut...

Journal: :Journal of clinical microbiology 1992
L F Joyce J Downes K Stockman J H Andrew

The antimicrobial susceptibilities of 100 clinical isolates of Pseudomonas aeruginosa to six antipseudomonal antibiotics were tested by five methods: the National Committee for Clinical Laboratory Standards (NCCLS) methods for broth microdilution, agar dilution, and agar disk diffusion; the Vitek Automicrobic System method (Vitek Systems, Hazelwood, Mo.); and the PDM Epsilometer test (E test) (...

Journal: :The Journal of antimicrobial chemotherapy 2005
Sam K Bouchillon Jack L Johnson Daryl J Hoban Tim M Stevens Brian M Johnson

OBJECTIVES To determine the quantitative differences in telithromycin and azithromycin MIC values against Streptococcus pneumoniae, Haemophilus influenzae and Streptococcus pyogenes obtained using two recommended and commonly used methodologies: CLSI reference standard broth microdilution in ambient air and Etest((R)) concentration gradient in CO(2). METHODS Four hundred clinical isolates (S....

ژورنال: Medical Laboratory Journal 2016
Aflatoonian , Mohammad Reza, Alizade , Hesam , Fallah , Fatemeh, Ghanbarpour , Reza, Goudarzi , Hosein , Sharifi , Hamid ,

ABSTRACT         Background and Objective: One of the main tasks of clinical microbiology laboratories is to determine antibiotic resistance profiles in common pathogens and ensure the selection of effective antibiotics for certain infections. The aim of this study was to compare the methods of disk diffusion, broth microdilution and modified Hodge test i...

Journal: :Journal of clinical microbiology 1994
M A Pfaller C Grant V Morthland J Rhine-Chalberg

A comparative evaluation of methods for broth macro- and microdilution susceptibility testing of fluconazole was conducted with 119 clinical isolates of Candida albicans. Macro- and microdilution testing were performed according to National Committee for Clinical Laboratory Standards recommendations. For reference macrodilution testing, an 80% inhibition endpoint (MIC 80%) was determined after ...

Journal: :Journal of clinical microbiology 2016
Christopher D Doern Jason Y Park Michael Gallegos Debbie Alspaugh Carey-Ann D Burnham

The objective of this study was to investigate an apparent increase in linezolid-nonsusceptible staphylococci and enterococci following a laboratory change in antimicrobial susceptibility testing from disk diffusion to an automated susceptibility testing system. Isolates with nonsusceptible results (n = 27) from Vitek2 were subjected to a battery of confirmatory testing which included disk diff...

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