1 Prion Research Center, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Fort Collins, USA.
2 Colorado State University, Fort Collins, CO, 80523, USA.
3 Department of Statistics, Colorado State University, Fort Collins, CO, 80523, USA.
4 Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, USA.
5 Prion Research Center, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Fort Collins, USA. [email protected].
6 Colorado State University, Fort Collins, CO, 80523, USA. [email protected].