Wasting disease

Chronic wasting disease (CWD), sometimes called zombie deer disease, is a transmissible spongiform encephalopathy (TSE) affecting deer. TSEs are a family of diseases thought to be caused by misfolded proteins called prions and includes similar disease to such as BSE (mad cow disease) in cattle, Creutzfeldth-Jakob disease (CJD) in humans and scrapie in sheep. [Source: Wikipedia ]