. .I  think the type of hunting being done now is causing these diseases to spread among deer. Populations are too high from lack of killing deer like everyone used to.
JMHO- I can't say for other regions 
A lot of the bigger deer hunting operations 
buy large antlered breeding stock for the 
purpose of enhancing the sell ability of 
their hunting operations to those with the 
money to pay to kill an exceptionally large 
antlered buck to have on the office wall
and post on farcebook, etc. 
I personally think it's the penned deer
that spread the disease we see today 
Doesn't bother me at all, but those same 
types don't want other people shooting 
what they consider an inferior " trophy "
My take is to hunt your own hunt and let 
me hunt mine 
IIRC Ted Nugent put out a video about 
that very subject, but I don't have a way 
to link it if I find it