[thumper]

Has anyone, anywhere, ever contracted CWD from eating any ungulate?
Has any beef cow, which share range with CWD infected ungulates, ever contracted CWD?

There are states where CWD is endemic, and there is no testing and no worries. Hunters there eat CWD deer all the time. To my mind, you are more at risk by eating grocery store meat & produce - from which people get very ill from different contaminants every year.

It seems to me that governments and media, particularly in Alberta, have blown the remote possibility of CWD threat to human health way out of proportion. According to our own gov't website:

Chronic Wasting Disease and Human Health
There is no scientific evidence to suggest that CWD can infect humans and growing evidence that human infection is unlikely to occur. Similarly there is growing evidence of differences between CWD and bovine spongiform encephalopathy (BSE).
The US Centers for Disease Control advise that the human health risks from CWD, if any exist, are extremely low. However, as a precaution, the World Health Organization (WHO) recommends that all products from animals known to be infected with any prion disease (for example, BSE in cattle, scrapie in sheep, and CWD in deer and elk) should be excluded from the human food chain.
Alberta Response to CWD Public Health Concerns
Alberta accepts the current advice from local and international public health officials that there is no known health concern associated with CWD; however, persons should not knowingly consume meat of animals known to be infected with the disease.