title: Some characteristics of isolates of infectious bronchitis virus from commercial vaccines.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D001991:Bronchitis / Q000276:immunology / Q000382:microbiology / Q000662:veterinary*; D002645:Chickens; D005856:Germ-Free Life; D007106:Immune Sera; D007110:Immunity, Active; D009500:Neutralization Tests; D011201:Poultry Diseases / Q000276:immunology / Q000382:microbiology*; D012328:RNA Viruses / Q000276:immunology* / Q000302:isolation & purification / Q000472:pathogenicity; D014132:Trachea / Q000382:microbiology; D014611:Vaccination / Q000662:veterinary; D014765:Viral Vaccines / Q000592:standards; D014776:Virus Cultivation; D014777:Virus Diseases / Q000276:immunology / Q000382:microbiology / Q000662:veterinary*
chemical_list: D000914:Antibodies, Viral; D007106:Immune Sera; D014765:Viral Vaccines