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Rubella serology by solid-phase radioimmunoassay: its potential for screening programmes.

C Sugishita, S O'Shea, J M Best

    Clinical and Experimental Immunology
    |January 1, 1978
    PubMed
    Summary

    A new radioimmunoassay (RIA) for rubella immunoglobulin G (IgG) antibodies shows higher titres than conventional HAI tests. This RIA method is valuable for assessing rubella immunity in large-scale screening programs.

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    A Multicentre Study of Thromboprophylaxis in Pregnancy.

    Irish medical journal·2017

    Area of Science:

    • Virology
    • Immunology
    • Diagnostic Assays

    Background:

    • Rubella virus infection poses risks, particularly to pregnant women.
    • Accurate assessment of rubella immunity is crucial for public health.
    • Current serological tests like haemagglutination inhibition (HAI) may have limitations.

    Purpose of the Study:

    • To evaluate a newly developed solid-phase radioimmunoassay (RIA) for rubella immunoglobulin G (IgG) antibodies.
    • To compare the performance of RIA with conventional HAI tests.
    • To assess the utility of RIA for large-scale rubella screening.

    Main Methods:

    • Sera from 269 adult females with natural or vaccine-induced rubella infection were tested.
    • Sera from 100 antenatal clinic patients were also analyzed.

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  • Conventional HAI and a new solid-phase RIA for rubella IgG were employed.

    • Main Results:

    • RIA titres were approximately tenfold higher than HAI titres for both natural and vaccine-induced infections.
    • RIA effectively identified true immune status in individuals with low HAI antibody levels.
    • The RIA method eliminates the need for pre-treatment of sera to remove inhibitors.

    Conclusions:

    • The solid-phase RIA is a sensitive and robust method for detecting rubella IgG antibodies.
    • RIA offers advantages over HAI, including higher sensitivity and simplified sample preparation.
    • RIA is well-suited for the large-scale screening of rubella immunity recommended for antenatal and family planning clinics.