Performance of Etest for Antimicrobial Susceptibility Testing of Abiotrophia defectiva and Granulicatella Species

The Etest on chocolate Mueller-Hinton agar was compared to broth microdilution (BMD) for 125 isolates of nutritionally variant streptococci. Vancomycin Etests yielded 31.1% essential agreement (EA) and 20.0% categorical agreement (CA). Penicillin Etests yielded 86.0% EA and 85.6% CA, whereas ceftria...

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Bibliographic Details
Published in:Journal of clinical microbiology 2016-08, Vol.54 (8), p.2194-2196
Main Authors: Alberti, Michael O, Hindler, Janet A, Humphries, Romney M
Format: Article
Language:English
Subjects:
Abiotrophia - drug effects
Abiotrophia defectiva
Anti-Bacterial Agents - pharmacology
Bacteriology
Carnobacteriaceae - drug effects
Culture Media - chemistry
Disk Diffusion Antimicrobial Tests - methods
Humans
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Summary:The Etest on chocolate Mueller-Hinton agar was compared to broth microdilution (BMD) for 125 isolates of nutritionally variant streptococci. Vancomycin Etests yielded 31.1% essential agreement (EA) and 20.0% categorical agreement (CA). Penicillin Etests yielded 86.0% EA and 85.6% CA, whereas ceftriaxone Etests yielded 73.6% EA and 68.0% CA.
ISSN:0095-1137
1098-660X
DOI:10.1128/JCM.00822-16