Virus hepatitis in ducklings.
D000818:Animals; D003141:Communicable Diseases; D004194:Disease; D004372:Ducks; D006505:Hepatitis; D006506:Hepatitis A; D011200:Poultry; D014765:Viral Vaccines
D014765:Viral Vaccines
FOWLS, DOMESTIC/diseases; HEPATITIS, INFECTIOUS