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Chronic Wasting Disease
Chronic wasting disease is a fatal neurological disease caused by one or more strains of prions (abnormally shaped proteins) found in deer, elk and moose. The disease results in the early death of an infected animal and, over time, decreases survival rates of infected herds. Once well established in a herd, it is usually impossible to eradicate. No immunity develops, and infected animals do not recover. Without management, the presence of the disease will increase and may cause a population to decline over time. About half of Colorado’s deer herds and one-third of its elk herds have animals within the herd that are known to be infected with the disease.