title: Multiplication of the scrapie agent.
mesh_terms: D000818:Animals; D001921:Brain / Q000166:cytology; D002478:Cells, Cultured; D051379:Mice; D012157:Mononuclear Phagocyte System / Q000382:microbiology; D011328:Prions / Q000254:growth & development* / Q000302:isolation & purification
chemical_list: D011328:Prions