Elk Welfare and Chronic Wasting Disease

Elk populations across North America are threatened by chronic wasting disease, a fatal prion disease that causes prolonged neurological decline, representing one of the most significant wildlife welfare crises of our era.

Key Facts

Chronic wasting disease (CWD) has been detected in elk, deer, and moose in 30 US states and multiple Canadian provinces
Infected animals experience progressive neurological degeneration over months before death, losing weight and coordination
There is no treatment or vaccine for CWD, and prions can persist in soil for years
CWD prevalence in some Wyoming elk herds exceeds 25%, raising fears of population-level collapse
The disease may spread to new areas via infected carcasses, supplemental feeding concentrations, and deer farming

Welfare Considerations

CWD causes profound and prolonged welfare suffering. Affected elk experience months of progressive neurological decline including weight loss, behavioural changes, loss of fear of humans, and eventual inability to stand or eat. The prion mechanism means infection is uniformly fatal with no possibility of recovery or treatment. High prevalence in some herds means large numbers of animals are simultaneously experiencing this protracted suffering. The welfare scale of CWD, combined with its trajectory of spread, makes it one of the most serious animal welfare issues in North America.

What You Can Do

Support funding for CWD research into prion decontamination, diagnostic tests, and potential vaccine development
Oppose supplemental wildlife feeding programmes that concentrate animals and accelerate CWD spread
Advocate for strict deer and elk farming biosecurity regulations to prevent CWD transmission
Report any elk or deer showing signs of neurological impairment to state wildlife agencies