title: Live duck virus hepatitis vaccination of maternally immune ducklings.
mesh_terms: D000818:Animals; D000831:Animals, Newborn / Q000382:microbiology*; D004372:Ducks / Q000276:immunology*; D004769:Enterovirus Infections / Q000517:prevention & control / Q000662:veterinary*; D004371:Hepatitis Virus, Duck; D011201:Poultry Diseases / Q000382:microbiology / Q000517:prevention & control*; D014611:Vaccination / Q000662:veterinary*