has part realizes has specified input characteristic of Viruses assay reagent role viral hemagglutination inhibition assay An assay that measures the ability of an evaluant to inhibit hemagglutination by a virus. Hemagglutinin is a viral protein which binds to sialic acid receptors on cells or to erythrocytes, causing the cells to clump. Loss of clumping indicates that the evaluant blocks binding of hemagglutinin to sialic acid receptors. Melanie Courtot HAI viral hemagglutination inhibition assay Bjoern Peters OBI branch derived hemagglutination inhibition Randi Vita Examining the ability of a monoclonal antibody to inhibit hemagglutination by Influenza A virus by comparing the levels of hemagglutination with and without the presence of the antibody. HIA viral haemagglutinin inhibition assay biological activity induced hemagglutination metadata complete