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Abstract
An anti-H antibody was demonstrated to be produced in egg yolk as well as in serum of hens which were immunized with human type O red blood cells. The antibody in egg yolk was isolated with polyethylene glycol and ethanol and was purified by affinity chromatography using immunoadsorbant beads immobilized with H type 2 hapten (Fucai2Ga1β14GlcNAcβ). Hemagglutination reaction of the antibody from egg yolk was inhibited by human saliva samples from secretor types irrespective of their ABO blood types, and by immunoadsorbant beads which contain Fucal2Galβ structures.