title: Some factors controlling the incidence of scrapie in Cheviot sheep injected with a Cheviot-passaged scrapie agent.
mesh_terms: D000483:Alleles; D000818:Animals; D001947:Breeding; D005799:Genes, Dominant; D005808:Genes, Recessive; D005827:Genetics, Microbial; D005838:Genotype; D007267:Injections; D011328:Prions / Q000254:growth & development; D012608:Scrapie / Q000235:genetics*; D012756:Sheep; D013045:Species Specificity; D013997:Time Factors
chemical_list: D011328:Prions