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Rapid identification of group D streptococci with the API 20S system
Journal of Clinical Microbiology
|June 1, 1983
Summary
The API 20S system accurately identifies Lancefield group D streptococci to the species level. This rapid method offers convenient, same-day identification for clinical laboratories, improving diagnostic efficiency.
Area of Science:
- Microbiology
- Clinical Diagnostics
Background:
- Accurate identification of Lancefield group D streptococci is crucial for patient management.
- Conventional identification methods can be time-consuming.
Purpose of the Study:
- To evaluate the API 20S system for rapid species-level identification of group D streptococci.
- To compare the API 20S system's performance against conventional methods.
Main Methods:
- The API 20S system was used to identify 209 Lancefield group D streptococci isolates.
- Results were compared with a conventional tube biochemical system and serological grouping.
Main Results:
- The API 20S system achieved 97% species identification within 4 hours.
- 99% identification was reached with supplemental overnight tests for challenging isolates.
- The system demonstrated high accuracy compared to conventional methods.
Conclusions:
- The API 20S system is a convenient and accurate method for rapid, same-day species identification of group D streptococci.
- This system can enhance diagnostic efficiency in clinical microbiology laboratories.