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  • Title: Preparation and use of erythrocyte-globulin conjugates to Lassa virus in reversed passive hemagglutination and inhibition.
    Author: Goldwasser RA, Elliott LH, Johnson KM.
    Journal: J Clin Microbiol; 1980 Jun; 11(6):593-9. PubMed ID: 7000810.
    Abstract:
    Conditions were defined for functional covalent coupling of anti-Lassa virus globulins to glutaraldehyde-fixed chicken erythrocytes. Tolylene-2,4-diisocyanate in a reaction mixture containing not more than 0.01 M NaCl produced uniformly good conjugates which were used in reversed passive hemagglutination (RPH) and reversed passive hemagglutination inhibition (RPHI) tests to detect Lassa virus antigens in infected cell cultures and specific antigens in Vero cell cultures. Identical results were obtained with this method and with immunofluorescent-antibody (IFA) staining in the detection and identification of Lassa virus isolated from human and rodent specimens from West Africa. The RPHI method was equal to IFA for serological diagnosis of acute human Lassa virus infection and superior to IFA, complement fixation, and a radioimmunoassay procedure for detection of Lassa virus antibodies in a human population where this infection is endemic.
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