Elk Hunt Area 23 shares borders three other hunt areas that have reported cases of the fatal neurodegenerative disease.
The white-tailed deer was harvested in the Kootenay region in October near where a CWD-positive doe was killed in a vehicle collision in February 2024.
After two initial positive tests, the confirmation test was negative, but officials said they are treating the case as CWD.
The deer also had epizootic hemorrhagic disease, a fatal viral illness that affects primarily white-tailed deer.
Wildlife organization calls for culling of herds, increased testing, and a dedicated funding mechanism.
The Tennessee Wildlife Resources Agency reported the case yesterday in a hunter-harvested deer in the county, in the western part of the state.
A hunter harvested the elk next to the lower Ruby Valley, which has a high prevalence of the fatal prion disease in white-tailed and mule deer.
The newly affected regions are Deer Hunt Areas 31 and 94 and Elk Hunt Area 126.
The case was detected last week in Marshall County, a North Mississippi CWD management zone.
The cases include two deer in Conway and Stone counties in Arkansas and an elk in Montana's Hunting District 704.
The service prioritized jurisdictions that have detected CWD or that border CWD-endemic areas and have either launched surveillance programs or plan to do so.
The 2.5-year-old buck was found on private land in Lanier County, in the south-central part of the state.
The exact degree of population declines, however, will depend on local hunter harvest and recruitment rates, the report authors say.
One of the 2 infected white-tailed bucks was found near Greenfield in Hennepin County; the other was taken near Hawley in Clay County.
The Fremont County deer was found west of Percival, near the Missouri River, while the Pottawattamie County deer was taken northwest of Avoca.
One of the two adult bucks was harvested by a hunter, and the other was identified on a deer-breeding farm.
Authorities detected the cases in Concordia, St Landry, and Tangipahoa parishes after tracing them back to a CWD-positive deer farm in Jefferson Davis Parish.
Nebraska conducts CWD surveillance in 4 to 7 regions each year, rotating to a different part of the state each season.
The two 2.5-year-old bucks in Cleburne County, located within a quarter-mile of each other, and a 3.5-year-old buck in Baxter were harvested during the hunting season.
The severely emaciated deer was found dead on private property located more than 10 miles away from any other CWD-positive cases.
The two adult female elk were found dead in January and early February, respectively, at the Dell Creek feeding ground.
The county is in southwestern Indiana, on the border with Illinois and Kentucky, both of which are CWD-positive.
Baiting and feeding encourage deer to congregate around a shared food source, risking the transmission of CWD through direct contact or environmental contamination.
Wyoming's Horse Creek becomes the 4th elk feeding ground in the state to test positive since January, and Louisiana's Catahoula Parish reports the first case in wild deer outside of Tensas Parish.
Grant County, in the northeast part of the state, was added to the state's CWD containment area in 2015 because it is near other counties with CWD-positive cases.