Abstract
The most commonly used method for testing the antibiotic susceptibility of aerobic and facultative bacteria is the disk diffusion method. However, some anaerobic bacteria do not grow well enough in anaerobic jars for performance of disk diffusion tests. A modification of the broth-disk method of Schneierson allowed us to determine antibiotic susceptibility in a completely anaerobic environment. Commercial antibiotic disks were added anaerobically to tubes of prereduced brain heart infusion broth to achieve a concentration of each antibiotic approximating that attainable in blood. The tubes were then inoculated and incubated for 18 h. Resistance or susceptibility to each antibiotic was determined according to the amount of growth in each tube as compared with a control culture without the antibiotic. There was good correlation between results obtained by this broth-disk method and minimal inhibitory concentrations.
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Selected References
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- BEERENS H., GUILLAUME J. Technique de détermination de la sensibilité des bacteéries anaérobies aux antibiotiques par la méthode des disques. Ann Inst Pasteur (Paris) 1954 Jun;86(6):781–785. [PubMed] [Google Scholar]
- Ericsson H. M., Sherris J. C. Antibiotic sensitivity testing. Report of an international collaborative study. Acta Pathol Microbiol Scand B Microbiol Immunol. 1971;217(Suppl):1+–1+. [PubMed] [Google Scholar]
- Ingham H. R., Selkon J. B., Codd A. A., Hale J. H. The effect of carbon dioxide on the sensitivity of Bacteroides fragilis to certain antibiotics in vitro. J Clin Pathol. 1970 Apr;23(3):254–258. doi: 10.1136/jcp.23.3.254. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Isenberg H. D., Reichler A., Wiseman D. Prototype of a fully automated device for determination of bacterial antibiotic susceptibility in the clinical laboratory. Appl Microbiol. 1971 Dec;22(6):980–986. doi: 10.1128/am.22.6.980-986.1971. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sutter V. L., Kwok Y. Y., Finegold S. M. Standardized antimicrobial disc susceptibility testing of anaerobic bacteria. I. Susceptibility of Bacteroides fragilis to tetracycline. Appl Microbiol. 1972 Feb;23(2):268–275. doi: 10.1128/am.23.2.268-275.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wikins T. D., Holdeman L. V., Abramson I. J., Moore W. E. Standardized single-disc method for antibiotic susceptibility testing of anaerobic bacteria. Antimicrob Agents Chemother. 1972 Jun;1(6):451–459. doi: 10.1128/aac.1.6.451. [DOI] [PMC free article] [PubMed] [Google Scholar]