Occurrence of rabies in wolves of Alaska.

We describe a rabies epizootic in northwest Alaska (USA) during 1989 and 1990 which resulted in mortality to several different wolf (Canis lupus) packs. Four radio-collared wolves were confirmed to have rabies while evidence for seven others was strongly suggestive but not confirmed. The wolf population declined during the rabies epizootic; thus rabies may have been a significant limiting factor.