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A note on a code for the identification of the 'viridans' streptococci
The Journal of Applied Bacteriology
|May 1, 1985
Summary
A new numerical code simplifies identifying viridans streptococci using Facklam's classification. This system aids in differentiating species, subspecies, and biotypes based on biochemical tests.
Area of Science:
- Microbiology
- Bacteriology
Background:
- Viridans streptococci comprise a complex group of bacteria.
- Accurate identification is crucial for clinical and research purposes.
- Existing classification systems can be cumbersome.
Purpose of the Study:
- To develop a simple numerical code for identifying viridans streptococci.
- To facilitate differentiation of species, subspecies, and biotypes within this group.
Main Methods:
- Utilized Facklam's classification system.
- Employed a scheme based on nine biochemical tests.
- Included an additional five tests for closely related species and Streptococcus mutans variants.
Main Results:
- The numerical code successfully divides viridans streptococci into 10 distinct species.
- The system recognizes five subspecies and one biotype of Streptococcus mutans.
- The code differentiates between isolates of the same species and between biochemically active/non-active species.
Conclusions:
- The devised numerical code offers an efficient method for viridans streptococci identification.
- This system enhances the ability to distinguish between similar species and strains.
- The code aids in understanding biochemical similarities among streptococcal species.