AXPF - Johnson,C.J.; Pedersen,J.A.; Chappell,R.; McKenzie,D.; Aiken,J.M. - Oral Transmission of Prion Disease Is Enhanced by Binding to Soil Particles - International Conference - Prion 2007 (26.-28.9.2007) Edinburgh International Conference Centre, Edinburgh, Scotland, UK - Book of Abstracts: Epidemiology, Risk Assessment and Transmission P04.71