Agglutination - Agglutination is the visible second stage result of mixing a particulate or cellular antigen with a homologous antiserum. Agglutinins are antibodies that agglutinate bacterial cells, white or red blood cells, or anything cellular. When the cells interact with the appropriate antibody, they clump together and form flocculent masses, compact granules, or this sheets that become large enough to be seen.





