THE INTERFERENCE PHENOMENON IN THE DEVELOPMENT OF RESISTANCE AGAINST DUCK PLAGUE.
D000818:Animals; D000831:Animals, Newborn; D002642:Chick Embryo; D004372:Ducks; D016233:Immunotherapy, Active; D010930:Plague; D011201:Poultry Diseases; D012106:Research; D014777:Virus Diseases
ANIMALS, NEWBORN; CHICK EMBRYO; EXPERIMENTAL LAB STUDY; POULTRY DISEASES; VACCINE THERAPY; VIRUS DISEASES