I live up in NW Ohio and have not seen or heard of any EHD or slang name of Blue Tongue. I asked the game warned about it during the gun season at a check in station and he said it is from mites that get on the deer skin and when they bite them it causes the disease. He said from the time they get bit it only takes about a week to kill them. He said it also makes them crave water and that is why most are found by it. He told me that it is a disease that comes from the Carolina area and Georgia and usually never makes it into Ohio like it did this year. Said that the drought most of the state had help spread it up here.