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Related Experiment Videos

Fingerprinting Candida albicans.

W Lee, J Burnie, R Matthews

    Journal of Immunological Methods
    |November 6, 1986
    PubMed
    Summary
    This summary is machine-generated.

    A novel immunoblotting method effectively types Candida albicans isolates, identifying 16 distinct types. This technique aids in controlling candidosis outbreaks by pinpointing infection sources and preventing cross-infection.

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    Area of Science:

    • Medical Microbiology
    • Immunology

    Background:

    • Candida albicans typing is crucial for understanding infection dynamics.
    • Existing methods like serotyping, morphotyping, and biotyping have limitations in sensitivity and phenotypic variability.

    Purpose of the Study:

    • To develop and evaluate a new immunoblotting method for typing Candida albicans isolates.
    • To assess the sensitivity and applicability of the new method compared to existing techniques.

    Main Methods:

    • Candida albicans isolates were pretreated enzymatically with alpha-mannosidase and sonicated.
    • A modified ELISA system was used for staining with rabbit hyperimmune serum against C. albicans NCTC 3153.
    • 190 isolates from London Hospital were analyzed using this immunoblotting technique.

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    Main Results:

    • The new method identified 16 distinct types among 190 Candida albicans isolates.
    • Type 1 was the most common (43%) outside intensive care units.
    • Type 2 was associated with a systemic candidosis outbreak in an intensive care unit.

    Conclusions:

    • The immunoblotting technique is highly sensitive and overcomes the phenotypic variability of biotyping.
    • While gel-to-gel variation limits large-scale epidemiology, it is valuable for identifying and controlling outbreaks to prevent cross-infection.