Direct prion transmission likely predominates during breeding season, but indirect interactions may be more common at socially attractive sites such as scrapes, the authors say.
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The buck was harvested near the border with Michigan, where CWD had already been detected.
Craighead County is in northeastern Arkansas, abutting Missouri and not far from the Tennessee border.
It may be possible for deer or non-cervid animals such as people to be exposed to prions from contaminated plants, but the CWD-prion species barrier in humans is thought to be high.
CWD prions (misfolded proteins) were found in a county scrape, or area that bucks defoliate by pawing, in June.
The BC Wildlife Federation reports 2 cases of the fatal neurodegenerative prion disease in a male mule deer and a female white-tailed deer in the southeastern part of the province.
The disease was confirmed in a buck mule deer in Deer Hunt Area 90 in December.
The CWD positive is the first at Sheboygan County farm, though the disease had been detected in the area's wild deer.
The fatal neurodegenerative infection was confirmed in a hunter-harvested cow elk in Elk Hunt Area 28 in late December.
During the next 5 years, the farm won't be able to hold cervids—members of the deer family—and must maintain fences and allow routine inspections.
For the first time, CWD was found in Rock, Blaine, and Thomas counties, all in the north-central part of the state.
