title: Pathogenicity of two embryo-passage levels of avian infectious bronchitis virus for the oviduct of young chickens of various ages.
mesh_terms: D000367:Age Factors; D000818:Animals; D000956:Antigens, Viral; D001991:Bronchitis / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D002642:Chick Embryo; D002645:Chickens; D004487:Edema / Q000473:pathology / Q000662:veterinary; D004847:Epithelial Cells; D005260:Female; D005455:Fluorescent Antibody Technique; D010057:Oviducts / Q000276:immunology / Q000473:pathology; D011201:Poultry Diseases / Q000209:etiology / Q000382:microbiology* / Q000473:pathology; D012328:RNA Viruses / Q000276:immunology / Q000472:pathogenicity*; D014776:Virus Cultivation; D014777:Virus Diseases / Q000209:etiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary
chemical_list: D000956:Antigens, Viral