1. Southeastern Cooperative Wildlife Disease Study, University of Georgia College of Veterinary Medicine, 589 D. W. Brooks Drive, Athens, Georgia 30602, USA
2. U.S. Geological Survey Alaska Science Center, 4210 University Drive, Anchorage, Alaska 99508, USA
3. Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, 660 Raymond Stotzer Parkway, College Station, Texas 77843, USA
4. National Park Service, Gates of the Arctic National Park and Preserve, 101 Dunkel Street, Fairbanks, Alaska 99701, USA
5. National Park Service, Lake Clark National Park and Preserve, 1 Park Place, Port Alsworth, Alaska 99653, USA
6. U.S. Fish and Wildlife Service, Kodiak National Wildlife Refuge, 1390 Buskin River Road, Kodiak, Alaska 99615, USA
7. Alaska Department of Fish and Game, Division of Wildlife Conservation, 1255 W 8th Street, Juneau, Alaska 99811, USA