Deer dies of EHD in southeast Indiana as DNR investigates potential outbreak
CLARK COUNTY, Ind. – A deer died from epizootic hemorrhagic disease (EHD) in southeast Indiana.
The Department of Natural Resources confirmed Monday that the deer recently found in Clark County tested positive for the EHD virus. DNR says additional testing is required to determine the strain of EHD virus.
EHD is a viral disease that may affect white-tailed deer to some degree every year. It typically occurs during late summer and early fall, and DNR says there is evidence that outbreaks may be worse during drought years.
The virus is transmitted by flies commonly known as biting midges, sand gnats, and “no-see-ums.” Humans are not at risk for contracting hemorrhagic disease.
The testing comes as DNR investigates reports of sick or dead deer in central and south-central Indiana. Officials say Clark County seems to be experiencing the most intense outbreaks thus far, but reports have come from 10 counties total.
“Although the reports DNR is receiving are consistent with EHD episodes of past years, it’s important for testing to be done on samples before it can be confirmed,” said Dr. Joe Caudell, DNR deer research biologist. “Samples need to be collected as soon as possible after the deer dies to be most useful for testing.”
Caudell worked with conservation officers to collect an adequate sample, the one that tested positive for EHD, on Aug. 2.
“Deer infected with EHD may appear depressed or weak and often seek out water. Other signs may include a blue-tinged tongue, swelling of the head, neck or eyelids, ulcers on the tongue and the oral cavity, or sloughed hooves,” said Dr. Nancy Boedeker, DNR wildlife veterinarian.
DNR says hemorrhagic disease is often fatal to deer, but some will survive the illness. Not every deer in an affected area will contract hemorrhagic disease. Localized death losses during an outbreak can range from negligible to greater than 50 percent. Outbreaks can be more severe in years in which there is a wet spring followed by a hot, dry fall. Severe outbreaks rarely occur in subsequent years due to immunity gathered from previous infections.
“If you see a deer that you suspect may have died from EHD, you can report it directly to the DNR through our website at deer.dnr.IN.gov,” Caudell said. “Just click on the link for Report a Dead or Sick Deer.”
The DNR monitors for EHD annually. The most recent significant outbreaks were in 2007 and 2012.