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RUBELLA COMPLEMENT FIXATION TEST

J L SEVER, R J HUEBNER, G A CASTELLANO

    Science (New York, N.Y.)
    |April 16, 1965
    PubMed

    Insights

    Rubella complement-fixing antigens were developed for diagnostic testing. Complement-fixing antibodies appear after rash onset and persist for months, while neutralizing antibodies remain detectable for years.

    Area of Science:

    • Virology
    • Immunology
    • Diagnostic Serology

    Background:

    • Rubella virus is a significant public health concern.
    • Accurate diagnostic methods are crucial for rubella management.
    • Understanding rubella antibody dynamics informs vaccination and immunity assessment.

    Purpose of the Study:

    • To develop and characterize complement-fixing antigens for rubella detection.
    • To investigate the temporal profile of complement-fixing and neutralizing antibodies in rubella patients.

    Main Methods:

    • Rubella-specific complement-fixing antigens were prepared using infected RK-13 rabbit kidney cells and African green monkey kidney cells.
    • Antigens were produced by freezing and thawing infected cell monolayers three times.
    • Complement fixation tests and neutralization assays were performed on patient sera.

    Main Results:

    • Complement-fixing antibodies were detected in rubella patients shortly after rash resolution, persisting for at least 8 months.
    • In individuals with a history of rubella 10-20 years prior, complement-fixing antibodies were absent in 8 out of 12 cases.
    • Neutralizing antibodies were present in these long-term convalescent individuals.

    Conclusions:

    • The developed complement-fixing antigens are suitable for detecting recent rubella infections.
    • Complement-fixing antibody levels decline over time, becoming undetectable years after infection.
    • Neutralizing antibodies provide a more durable marker of past rubella exposure and immunity.
    Keywords:
    ANTIBODIESCOMPLEMENT FIXATION TESTSKIDNEYMONKEYSNEUTRALIZATION TESTSRABBITSRUBELLATISSUE CULTURE

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