A study of the pathology of the chicken embryo infected with a transmissible agent isolated from sheep lungs.
D000818:Animals; D002645:Chickens; D004622:Embryo, Mammalian; D004625:Embryo, Nonmammalian; D008460:Meat; D011014:Pneumonia; D012756:Sheep; D034561:Sheep, Domestic; D014780:Viruses
EMBRYO; PNEUMONIA; VIRUSES