the hemagglutination inhibition test ( hai ) and the enzyme-linked immunosorbent assay ( elisa ) for detecting antibody to rubella virus were compared by testing 25 sets of paired sera taken before and after infection and 10 sets of sera taken during acute and convalescent stages of the disease and by screening 700 serum samples from the collaborative perinatal project , nih/nincds .
C0035924
rubella virus
C0009450
infection