title: Serologic differences between the Beaudette and Massachusetts strains of infectious bronchitis virus.
mesh_terms: D000818:Animals; D000906:Antibodies; D002645:Chickens / Q000276:immunology*; D009500:Neutralization Tests; D011201:Poultry Diseases / Q000276:immunology*; D014777:Virus Diseases / Q000276:immunology / Q000662:veterinary*; D014713:Viruses, Unclassified / Q000276:immunology*
chemical_list: D000906:Antibodies