title: Studies on the efficiency of various immunization methods and schedules against Newcastle disease. II. Immune state of growing chickens and laying hens after large scale vaccination with Hertfordshire (H) and La Sota strains.
mesh_terms: D000818:Animals; D002645:Chickens / Q000276:immunology*; D005260:Female; D009521:Newcastle Disease / Q000517:prevention & control*; D009522:Newcastle disease virus / Q000276:immunology*; D010058:Oviposition; D014611:Vaccination / Q000662:veterinary*; D014765:Viral Vaccines / Q000008:administration & dosage*
chemical_list: D014765:Viral Vaccines