Epizootic Hemorrhagic Disease (EHD) September 24, 2012 South Dakot

South Dakota Deer Disease News Archive

Epizootic Hemorrhagic Disease (EHD) September 24, 2012 South Dakota Department of Game, Fish, and Parks
EHD is a disease that mainly affects white-tailed deer in the United States. This disease is caused by a virus that is spread by a biting midge. The disease usually affects deer herds in South Dakota in the late summer or early fall. Most refer to this disease as bluetongue and although they are very similar, they are slightly different viruses. EHD can affect mule deer, bighorn sheep, elk and pronghorn in South Dakota, but it primarily impacts white-tailed deer. EHD is the most common occurring viral disease of white-tailed deer in the United States. The southeastern portion of the United States has EHD outbreaks every year with relatively few losses of animals. In the northern plains, we usually see minor disease losses, but some years, losses can be significant.

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