title: Reticuloendothelial system cells modifying bacterial antigen specificity.
mesh_terms: D000818:Animals; D000906:Antibodies / Q000032:analysis; D000918:Antibody Specificity; D000937:Antigen-Antibody Reactions; D005455:Fluorescent Antibody Technique; D005779:Immunodiffusion; D008099:Liver / Q000032:analysis; D008264:Macrophages / Q000032:analysis; D051379:Mice; D012157:Mononuclear Phagocyte System / Q000276:immunology*; D011135:Polysaccharides, Bacterial / Q000032:analysis; D011233:Precipitin Tests; D013291:Streptococcus / Q000276:immunology*
chemical_list: D000906:Antibodies; D011135:Polysaccharides, Bacterial