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Categorized | Outdoors

EHD confirmed in 15 Michigan counties

The Michigan Department of Natural Resources and Michigan State University Diagnostic Center for Population and Animal Health had recently confirmed that the deaths of deer in Ionia and Branch counties is due to epizootic hemorrhagic disease (EHD). Last week, they also confirmed EHD in six additional counties, and as of August 21, deer in 15 counties had been affected. The largest outbreak occurred in Ionia County, with 867 confirmed cases as Tuesday, August 21. The Total number affected is 1,251.

Officials said there has been a nationwide increase of EHD outbreaks due to the extended hot and dry conditions.

White-tailed deer died of EHD in 2007.

White-tailed deer died of EHD in 2007.

The often-fatal viral disease, found in wild ruminants, causes extensive internal bleeding within deer and is transmitted by a midge, or type of biting fly. A constant characteristic of the disease is its sudden onset. Deer lose their appetite and fear of humans, grow progressively weaker, salivate excessively and finally become unconscious. Due to a high fever, infected deer often are found sick or dead along or in bodies of water. There is no evidence that humans can contract the EHD virus.

EHD outbreaks killing deer in Michigan have occurred in isolated areas almost every year since 2006. Prior to 2006, EHD outbreaks in Michigan occurred in 1955 and 1974. The estimated mortality has varied from 50 to 1,000 deer per year in the affected areas.

“We are seeing a large die-off of deer in local areas. To date we have over 900 reports of dead deer across all counties,” stated Tom Cooley, DNR wildlife biologist and pathologist. “Although it is difficult to see so many dead deer, this is still a localized issue and the regional deer population should not be impacted.”

The DNR would like to remind hunters that they may not see as many deer in the areas where EHD is occurring. Deer numbers in the affected areas should rebound within a few years.

There is no known effective treatment for, or control of, EHD. In states where EHD is more common, deer have built up antibodies to the disease, and population recovery does not take long. Michigan deer do not have the benefit of these antibodies. Losses may be severe but are typically restricted to localized areas. Population recovery may take longer than has been experienced in other states.

Property owners who discover dead deer or would like to talk to their local wildlife biologist should contact their nearest DNR office. Office locations can be found at www.michigan.gov/wildlife by clicking on Wildlife Offices.

It is acceptable to allow natural deterioration processes to dispose of deer that die from EHD. Natural deterioration will not spread the disease or cause other disease outbreaks. Property owners are responsible for the proper disposal of carcasses that they wish to remove from the site. Carcasses should be buried at a sufficient depth so that no parts are showing above ground. Carcasses also can be disposed of at landfills that accept household solid waste.

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