one of the speculations within the veterinary field (i'm not a vet, just know a few) was that some of the movement between states specifically western states to eastern states would be the guys going west shooting elk/deer and bringing back part of the carcass for either the taxidermist or to process the meat at home.

bring back part of the animal with the spinal cord, cut off either the meat or cape and discard the rest out back not thinking anything of it, now you have moved CWD contaminates into the local area


as far as I know although CWD & CJD(mad cow) are similar they haven't shown CWD to be transferable to humans (maybe a longer incubation period? or just no risk for us?)