title: Cytopathology of Newcastle disease. The influence of bursal and thymic lymphoid systems in the chicken.
mesh_terms: D000818:Animals; D000956:Antigens, Viral; D002060:Bursa of Fabricius / Q000276:immunology*; D002645:Chickens; D004912:Erythrocytes / Q000382:microbiology; D005455:Fluorescent Antibody Technique; D006968:Hypersensitivity, Delayed / Q000473:pathology; D007111:Immunity, Cellular; D007153:Immunologic Deficiency Syndromes / Q000473:pathology / Q000662:veterinary; D008214:Lymphocytes / Q000166:cytology; D008221:Lymphoid Tissue / Q000473:pathology*; D008264:Macrophages / Q000382:microbiology; D008407:Mast Cells / Q000166:cytology; D008854:Microscopy, Electron; D009000:Monocytes / Q000166:cytology; D009336:Necrosis; D009521:Newcastle Disease / Q000473:pathology*; D011201:Poultry Diseases / Q000473:pathology*; D011689:Purkinje Cells / Q000382:microbiology; D013154:Spleen / Q000098:blood supply / Q000473:pathology; D014132:Trachea / Q000382:microbiology
chemical_list: D000956:Antigens, Viral