Nation A disease is killing deer in some states. What is EHD? Is it contagious? Can humans get it? October 27, 2021 Gabriela Miranda, USA TODAY Comments Off on A disease is killing deer in some states. What is EHD? Is it contagious? Can humans get it? Epizootic hemorrhagic disease, a virus carried by a biting gnat, is killing off deer in Wisconsin, Minnesota and other states.