So far as is known, after more than 30 years of study of Chronic Wasting Disease of deer and elk, it is NOT transmissible to humans.
Yes, they say the spinal cord is the conduit for the disease; and even if I shot a deer and had the ability to test it, I would not take it to a butcher. The potential risk is too great. Much is unkown, too much.
But, let's take a look at reality here. I was a meat cutter for almost a decade. The pirons are, from what I have been able to asertain, all through the meat, they just concentrate in the spinal fluid. Is a butcher shop going to wash their grinder between deer? Nope. At $10-15/hr they can't afford to. There will always be some mixing of meat. This is why pork is ground last; they HAVE to wash it before grinding anything else.
I have my own grinder, it's a small one that I got through Cabelas (sp? Sorry!). But, given my history; I like to take the meat through the entire process myself.
With the situation in WI, I would not take any meat to a butcher; there is too much chance of a mix of meat; and who knows how the guy who's deer was ground before you treated his - or if he bothered to test it (assuming we get the USDA to let go of their strangle-hold on testing).
Oh, and as far as the saw, do you have any idea how hard it is to clean off the blade on a meat band saw? The entire thing needs to be dis-assembled. In the past it wasn't a major problem, but now....
Mark A Sity