Newcastle disease control: after the change.
D000818:Animals; D001502:Beak; D004196:Disease Outbreaks; D006920:Hygiene; D009521:Newcastle Disease / Q000517:prevention & control*; D011200:Poultry; D011201:Poultry Diseases / Q000517:prevention & control*; D013242:Sterilization; D006113:United Kingdom; D014611:Vaccination; D014765:Viral Vaccines / Q000008:administration & dosage*; D014881:Water Supply
D014765:Viral Vaccines