1. National Wildlife Research Center United States Department of Agriculture 4101 Laporte Ave. Fort Collins CO80521 USA
2. Department of Biology Colorado State University Fort Collins CO80523 USA
3. Animal and Plant Health Inspection Service United States Department of Agriculture Veterinary Services 2155 Center Drive Building B Fort Collins CO80523 USA
4. Department of Ecology and Evolutionary Biology Princeton University Princeton NJ08544 USA
5. MRC Centre for Outbreak Analysis and Modelling Imperial College London UK
6. U.S. Geological Survey Northern Rocky Mountain Science Center 2327 University Way Bozeman MT 59715 USA
7. U. S. Geological Survey Wisconsin Cooperative Wildlife Research Unit 1630 Linden Drove University of Wisconsin Madison WI53706 USA
8. U.S. Geological Survey Colorado Cooperative Fish and Wildlife Research Unit; Departments of Fish Wildlife & Conservation Biology and Statistics Colorado State University 1484 Campus Delivery Fort Collins CO80523 USA
9. Department of Statistics Colorado State University Fort Collins CO80523 USA
10. Department of Ecology & Evolutionary Biology UCLA Los Angeles CA90095 USA