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  • Title: IgM to human cytomegalovirus: comparison of two enzyme immunoassays and IgM reactivity to viral polypeptides detected by immunoblotting.
    Author: Re MC, Landini MP.
    Journal: J Clin Lab Anal; 1989; 3(3):169-73. PubMed ID: 2547041.
    Abstract:
    IgM detection by enzyme-linked immunosorbent assay (ELISA) is the most used method of establishing a cytomegalovirus (CMV) infection during pregnancy. In this paper, we discuss the results obtained assaying 1,000 sera from pregnant women by two ELISA kits: a traditional indirect ELISA and a more recent IgM-capture ELISA. All the sera that gave a positive ELISA value with one or both kits were further tested by immunoblotting (IB) to establish which CMV polypeptides were detected by IgM antibodies. From the results obtained, IgM-capture ELISA seems less sensitive than indirect ELISA, but correlates better with serological evidence of active CMV infections as judged by typical IB profiles.
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