Changes in the immune response related to age.
D000375:Aging; D000818:Animals; D001327:Autoimmune Diseases / Q000276:immunology / Q000662:veterinary; D004285:Dogs / Q000276:immunology*; D007109:Immunity; D007167:Immunotherapy / Q000662:veterinary; D013601:T-Lymphocytes / Q000276:immunology