title: Evidence for an essential DNA component in the Scrapie agent.
mesh_terms: D000818:Animals; D001921:Brain / Q000382:microbiology; D006224:Cricetinae; D004279:DNA, Viral / Q000302:isolation & purification*; D011328:Prions / Q000032:analysis* / Q000472:pathogenicity; D012608:Scrapie / Q000382:microbiology; D012756:Sheep
chemical_list: D004279:DNA, Viral; D011328:Prions