In the area I was referring to in Southeastern Pa., there are a bunch of Horse back fox hunters who chase foxes with dogs. I know that they bring in live foxes that they purchase, and turn them loose, so that, in their minds, they add to the population. I've often wondered what impact this would have on the local fox population as far as disease goes. If only they could understand the dis-service they are doing.
These people know nothing about the animals they are illegally importing or where they came from. The political positions some of these people hold keeps them out of trouble with authorities for what they are doing. I'm not trying to get off topic here, but I wonder if this might contribute to the problem in areas where this type of thing occurrs. If a fox with a case of mange, no matter how light the infection, is relocated to an area where mange is not present, isn't it most likely that the fox could be infecting other animals in the area, even if there is not an overpopulation issue.