The Oregon Department of Fish and Wildlife says a wolf found dead May 19 in northeastern Oregon died from canine parvovirus.
The department says it's the first case of the virus found in Oregon wolves. Wildlife agents are monitoring wolves for the disease.
The Oregonian reports the highly contagious disease is common among dogs and wild canines - wolves, coyotes and foxes.
The young female gray wolf identified as OR-19 was part of the Wenaha pack in Wallowa County. It was trapped on May 11 and released with a radio collar in apparent good health, but it died within a week.
Parvovirus has caused brief dips in wolf populations in other states, but outbreaks aren't expected to be a long-term threat to the species.