Growing Disease in Missouri Deer Sparks State Investigation

The state of Missouri is trying to learn the extent of a disease that can cause big problems for the deer population and they are asking for the public's help in determining how big an issue it is.

The Missouri Department of Conservation just shared a bulletin about hemorrhagic disease in Missouri deer. They say this involves two variations of related viruses which include epizootic hemorrhagic disease and bluetongue. They are clear that they do NOT expect a large outbreak this year among the Missouri deer population, but they also need an accurate way to measure the extent of the spread of it, just the same.

“Hemorrhagic disease is a naturally occurring virus in Missouri’s deer population,” explained MDC Wildlife Health Program Supervisor Deb Hudman. “Outbreaks are most common between July and October and typically end after a heavy frost kills the midges that spread it.”

Where are the cases of hemorrhagic disease in Missouri this year?

The Missouri Department of Conservation has shared this map which shows the counties with reported cases among the deer population in 2025.

How can you report hemorrhagic disease in Missouri deer?

Missouri has a simple form where you can report any issues with deer or any other wildlife directly through their official website.