NCIt definition : An in vitro assay used to measure the relative concentration of viruses, bacteria,
or antibodies in which serial dilutions of solution containing virus, bacteria, or
antibody are applied to red blood cells in culture to look for the presence of hemagglutination.;
Alternative definition : CDISC: An in vitro assay that is used to determine the relative concentration of viruses,
bacteria, or antibodies in which serial dilutions of solution containing virus, bacteria,
or antibody are applied to red blood cells in culture to look for the presence of
hemagglutination.;