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  • Title: Comparative detection of measles-specific IgM in oral fluid and serum from children by an antibody-capture IgM EIA.
    Author: Helfand RF, Kebede S, Alexander JP, Alemu W, Heath JL, Gary HE, Anderson LJ, Beyene H, Bellini WJ.
    Journal: J Infect Dis; 1996 Jun; 173(6):1470-4. PubMed ID: 8648222.
    Abstract:
    In vaccinated populations, the diagnosis of measles often requires laboratory confirmation. Serum tested by EIAs has proven sensitive and specific for diagnosing measles. For comparison of detection of measles-specific IgM in oral fluid and serum samples by an antibody-capture EIA, 163 Ethiopian infants who presented for routine measles vaccination were studied. Paired serum and oral fluid samples were collected before and 2 weeks after vaccination; 269 paired samples were adequate for analyses. Of the 104 serum samples that were IgM-positive, 95 (91%) of the paired oral fluid samples were IgM-positive. Of the 165 serum samples that were IgM-negative, 156 (95%) of the paired oral fluid samples were IgM-negative. The Pearson partial correlation coefficient for optical density readings from postvaccination oral fluid compared with serum was 0.81. Oral fluid appears to be an acceptable alternative to serum for measuring measles-specific IgM antibodies by an antibody-capture EIA.
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