title: Studies on the possible roles of naturally infected Nigerian local chickens and vaccine virus in the epidemiology of infectious bursal disease.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D000956:Antigens, Viral / Q000032:analysis; D002645:Chickens / Q000382:microbiology*; D007243:Infectious bursal disease virus / Q000276:immunology / Q000472:pathogenicity; D009549:Nigeria; D011201:Poultry Diseases / Q000453:epidemiology / Q000276:immunology / Q000382:microbiology*; D012088:Reoviridae Infections / Q000453:epidemiology / Q000276:immunology / Q000662:veterinary*
chemical_list: D000914:Antibodies, Viral; D000956:Antigens, Viral