title: Immunodiffusion reaction to avian infectious bursal virus.
mesh_terms: D000818:Animals; D000956:Antigens, Viral; D001991:Bronchitis / Q000175:diagnosis / Q000276:immunology / Q000662:veterinary; D002645:Chickens; D005779:Immunodiffusion; D008722:Methods; D011201:Poultry Diseases / Q000175:diagnosis* / Q000276:immunology; D014777:Virus Diseases / Q000175:diagnosis / Q000276:immunology / Q000662:veterinary*; D014713:Viruses, Unclassified / Q000276:immunology*
chemical_list: D000956:Antigens, Viral