Medical Microbiology and Immunology

, Volume 175, Issue 5, pp 307–316 | Cite as

Rapid identification of yeasts by semi-automated and conventional methods

  • S. M. Hussain Qadri
  • D. J. Flournoy
  • S. G. M. Qadri
  • E. G. Ramirez


Five different methods for the identification of significant yeast from clinical specimens were compared for their reliability, rapidity and cost-effectiveness. Three commercial methods consisted of semi-automated Abbott's yeasts identification system using MS-2 (Abbott Laboratories, Diagnostic Division, Irving, Texas), API 20C (Analytab Products, Inc., Plainview, NY) and Uni-Yeast-Tek (Flow Labs, Inc., MacLean, VA). Two conventional methods included the modified dye-plur plate auxanographic and rapid tube assimilation method. The 242 coded clinical isolates used in this study included 20 species ofCandida, Cryptococcus, Saccharomyces Geotrichum, Rhodotorula, Torulopsis andTrichosporon. The identificaiton accuracies with all the systems ranges between 92.3% to 97.5%. Results were available with Abbott's MS-2 within 24 h, with rapid tube assimilation method in 6–48 h and in 72 h with other systems. Rapid tube assimilation and dye-pour-plate auxanographic methods were least expensive, with labour and material costing around $ 1.00 per identification, whereas the commercial system cost a little over $ 5.00.


Identification System Conventional Method Clinical Isolate Clinical Specimen Rapid Identification 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag 1986

Authors and Affiliations

  • S. M. Hussain Qadri
    • 1
  • D. J. Flournoy
    • 1
    • 2
  • S. G. M. Qadri
    • 3
  • E. G. Ramirez
    • 3
  1. 1.University of Oklahoma Health Sciences CenterOklahoma City
  2. 2.Veterans Administration Medical CenterOklahoma CityUSA
  3. 3.Hospital Regional Zone Norte Petroleos MexicanosCd. Madero, Tam.Mexico

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