title: A new serotype of infectious bronchitis virus responsible for respiratory disease in Arkansas broiler flocks.
mesh_terms: D000818:Animals; D001131:Arkansas; D001991:Bronchitis / Q000276:immunology / Q000382:microbiology / Q000662:veterinary*; D002645:Chickens; D003332:Coronaviridae / Q000276:immunology / Q000302:isolation & purification*; D007106:Immune Sera; D008854:Microscopy, Electron; D009500:Neutralization Tests; D011201:Poultry Diseases / Q000276:immunology / Q000382:microbiology*; D014777:Virus Diseases / Q000276:immunology / Q000382:microbiology / Q000662:veterinary*
chemical_list: D007106:Immune Sera