Abstract |
A battery of five tests was used for presumptive identification of the pathogenic streptococci. The non-serological methods included determination of hemolysis for all strains, bacitracin susceptibility for group A streptococci, hippurate hydrolysis by group B streptococci, and bile- esculin reaction for group D streptococci. Enterococcal group D streptococci were differentiated from non-enterococcal group D streptococci by 6.5% NaCl tolerance. Two other categories of streptococci resulted: beta-hemolytic streptococci non-groups A, B, or D; and alpha- or nonhemolytic streptococci, not enterococci, not further identified (viridans streptococci). The tests were used as a battery and not as single entities. In this manner more than 99% of the group A, 99% of the group B, 81% of the beta-hemolytic streptococci non-group A, B, or D, 99% of the group D enterococci, 97% of the group D non-enterococci, and 94% of the viridans streptococci were correctly identified.
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Authors | R R Facklam, J F Padula, L G Thacker, E C Wortham, B J Sconyers |
Journal | Applied microbiology
(Appl Microbiol)
Vol. 27
Issue 1
Pg. 107-13
(Jan 1974)
ISSN: 0003-6919 [Print] United States |
PMID | 4589119
(Publication Type: Journal Article)
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Chemical References |
- Flavonoids
- Hippurates
- Bacitracin
- Sodium Chloride
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Topics |
- Bacitracin
(pharmacology)
- Bacteriological Techniques
- Bile
(metabolism)
- Drug Resistance, Microbial
- Flavonoids
(metabolism)
- Hemolysis
- Hippurates
(metabolism)
- Hydrolysis
- Methods
- Microbial Sensitivity Tests
- Serotyping
- Sodium Chloride
(pharmacology)
- Streptococcus
(classification, drug effects, immunology, metabolism, pathogenicity)
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