title: [State of immunity against Newcastle disease in chicken flocks infected with respiratory diseases].
mesh_terms: D000818:Animals; D000917:Antibody Formation; D002645:Chickens / Q000276:immunology*; D007109:Immunity; D007827:Laryngitis / Q000662:veterinary; D009175:Mycoplasma Infections / Q000662:veterinary; D009521:Newcastle Disease / Q000276:immunology*; D012141:Respiratory Tract Infections / Q000662:veterinary*; D014136:Tracheitis / Q000662:veterinary
vernacular_title: Sostoianie immuniteta protiv n'iukaslskoi bolezni v stadakh kur, neblagopoluchnykh po respiratornym bolezniam.