Four years ago, CWD was recorded on the north east side of West Virginia. It has since entered the north west counties of Virginia and made it's way south east down to my county for this year. We are now required to check in all deer at a check station, where as before we could just call in our harvest.
The recent acquisition of my hunting tour bus is in part due to my plans of hunting south western counties that don't have any CWD reportings.
Years back we had black fly that reduced the dear population then disappeared.
That is most likely how CWD will run its course. JMO