The role of blood cells in immunity.
D000818:Animals; D000917:Antibody Formation; D001773:Blood Cells / Q000276:immunology*; D002060:Bursa of Fabricius; D002465:Cell Movement; D004804:Eosinophils / Q000276:immunology; D006636:Histamine Release; D006968:Hypersensitivity, Delayed; D007109:Immunity; D008198:Lymph Nodes / Q000276:immunology; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000276:immunology; D008264:Macrophages; D008407:Mast Cells; D009000:Monocytes; D010587:Phagocytosis; D010950:Plasma Cells; D013950:Thymus Gland / Q000276:immunology