A viral disease not found in a Michigan deer since 2021 has shown up on the west side of the state and is likely to spread so beware hunters going into the woods this season. Being an avid deer hunter, I have heard about Chronic Wasting Disease (CWD) but Epizootic Hemorrhagic Disease (EHD) is a first. Deer catch EHD through bites from a type of biting fly called a midge. Warmer weather conditions make it easier for the flies to spread and cause outbreaks in July and August.