The deer had been initially captured in Cody, Wyoming, as part of a population study and was wearing a GPS collar, which allowed officials to determine the exact time of its death - mid-October 2023 on the Promontory landmass.
But what exactly is "zombie deer disease"? Also known as chronic wasting disease (CWD), it is a fatal illness that affects cervids, including deer, elk, caribou, reindeer, and moose. The disease is caused by a prion, a misfolded protein that accumulates in the brain and other tissues, leading to physiological and behavioral changes, emaciation, and ultimately death. CWD is spread through direct animal-to-animal contact or indirectly through contact with infected particles remaining in the environment, such as feces, dirt, or vegetation. There is currently no cure or vaccination for CWD.
According to the Centers for Disease Control and Prevention, symptoms in deer can develop over the course of a year and include listlessness, weight loss, increased drinking and urinating, excessive drooling, head lowering, and coordination problems. It is important to note that CWD is not known to infect humans or domestic and livestock animals. However, the consumption of tissues from CWD-infected animals is not recommended.
The confirmation of "zombie deer disease" in Yellowstone National Park is a cause for concern, as the spread of the disease can have serious implications for the park's wildlife population. Officials will continue to monitor the situation closely and take necessary measures to prevent further spread.
It is vital for visitors to the park to be aware of the presence of CWD and take precautions to avoid contact with infected animals or their remains. The National Park Service is urging the public to report any sightings of animals exhibiting symptoms of CWD and to refrain from consuming meat from infected animals. With proactive measures and public awareness, officials hope to contain the spread of this disease and protect the wildlife in Yellowstone National Park."