"The Canadian Wildlife Health Cooperative (CWHC) conducts scanning surveillance for canine distemper (morbillivirus) across Canada through post mortem examinations of animals with case presentations that are compatible with the disease. Although the virus potentially exists in natural populations across Canada, the majority of wildlife cases that have tested positive by the CWHC are from Ontario and Quebec. Current research also suggests that co-infections with rabies and distemper commonly occur in wildlife. "