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A latex agglutination test for hepatitis type B antigen.

K W Brammer, J M Leach, W D Butt

    Developments in Biological Standardization
    |January 1, 1975
    PubMed
    Summary

    A novel latex agglutination test, ANTIGEX-TM, offers sensitive detection of Hepatitis B Antigen (HBAg) in serum or plasma. This method provides a significant advancement for HBAg diagnostics, including subtype determination.

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    Area of Science:

    • Clinical diagnostics
    • Virology
    • Immunology

    Background:

    • Hepatitis B Antigen (HBAg) detection is crucial for diagnosing Hepatitis B Virus (HBV) infection.
    • Existing diagnostic methods have varying levels of sensitivity and specificity.
    • There is a need for improved, sensitive, and versatile HBAg detection systems.

    Purpose of the Study:

    • To introduce and evaluate a new latex agglutination test system, ANTIGEX-TM, for Hepatitis B Antigen (HBAg) detection.
    • To assess the sensitivity and specificity of ANTIGEX-TM compared to established methods.
    • To explore additional applications of the ANTIGEX-TM system.

    Main Methods:

    • Development and implementation of the ANTIGEX-TM latex agglutination assay.
    • Testing of serum and plasma specimens from normal blood donors in the UK and USA.
    • Evaluation using the F.D.A. Bureau of Biologics Sera Panel No. 2.
    • Comparison of ANTIGEX-TM sensitivity with complement fixation and counterimmunoelectrophoresis.

    Main Results:

    • ANTIGEX-TM demonstrates sensitivity comparable to complement fixation.
    • The new system is approximately four times more sensitive than counterimmunoelectrophoresis.
    • Successful detection of HBAg in serum and plasma specimens was confirmed.
    • The test showed potential for detecting HBAg in finger-prick blood samples and for rapid antigen subtyping ('ad' or 'ay').

    Conclusions:

    • ANTIGEX-TM is a highly sensitive and specific latex agglutination test for HBAg detection.
    • This system offers advantages over existing methods, including improved sensitivity and versatility.
    • ANTIGEX-TM represents a valuable tool for Hepatitis B diagnostics and research.

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