1. National Wildlife Health Center, 6006 Schroeder Road, Madison, Wisconsin 53711, USA
2. Canadian Cooperative Wildlife Health Center, Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada N1G 2W1
3. Canadian Wildlife Service, Environment Canada, 4905 Dufferin Street, Downsview, Ontario, Canada M3H 5T4
4. SERE Group, 138 Road 2 West, Kingsville, Ontario, Canada N9Y 2Z6
5. Present Address: Eagle Optics, 2120 West Greenview Drive #4, Middleton, Wisconsin 53562, USA
6. Animal Health Laboratory, University of Guelph, PO Box 3612, Guelph, Ontario, Canada N1H 6R8
7. Canadian Cooperative Wildlife Health Center, Department of Veterinary Pathology, 52 Campus Drive, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 5B4