In Ohio, epizootic hemorrhagic disease (EHD) has been reported in more than a dozen counties, killing over 100 deer on one farm. In Pennsylvania, several hundred deer are dead. In Kentucky, wildlife officials are calling this year’s outbreak one of the worst in history, capable of affecting 25 percent of the deer herd. And now, in Montana, EHD’s close cousin bluetongue (normally a livestock disease) has been confirmed the cause of death in a whitetail buck and a pronghorn.