Normal host prion protein (PrP C ) is required for scrapie spread within the central nervous system
Proceedings of the National Academy of Sciences (1996) - Comment
pubmed: 8917559  doi: 10.1073/pnas.93.23.13148  issn: 0027-8424  issn: 1091-6490 

Sebastian Brandner, Alex Raeber, Andreas Sailer, Thomas Blättler, Marek Fischer, Charles Weissmann, Adriano Aguzzi