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If you're a hunter or eat wild-caught game (deer, elk, moose, reindeer), then you should be concerned with chronic wasting disease (CWD). Chronic wasting disease is an always-fatal prion disease similar to "mad-cow disease" (bovine spongiform encephalopathy) in cattle.

In chronic wasting disease there is a long incubation period, followed by the brain become progressively like a sponge - riddled with holes, along with deterioration in brain function, behavioral changes, and eventually death. A horrible slow death. There are no treatments or vaccines.

It turns out that chronic wasting disease is slowly spreading and infecting wild game across the United States (26 states) and 3 Canadian provinces. [Also detected in Finland, Norway, South Korea, and Sweden.] The concern is that this disease will jump to humans, especially in people who eat contaminated meat.

A research center monitoring the situation and publishing information and research on its site is CIDRAP (Center for Infectious Disease and Policy). Make sure to look at the Tweets (Twitter).

One scary thing about CWD is that once it gets into the soil, it stays there for years, and high heat, disinfectants, and radiation don't kill it. Yikes! Dr.Zabel at the Colorado State Univ. Prion Research Center suggested a few years ago that controlled burns (fires) of infected fields or areas could eliminate the prions left behind by infected animals (from animal mucus/saliva, urine, and feces, and decaying carcasses) on plants and soil.

An article with advice for how hunters can protect themselves, and a map of where CWD is found in the US.: 5 Ways Hunters Can Prevent Spreading Chronic Wasting Disease

The Centers for Disease Control and Prevention (CDC) has several chronic wasting disease pages, including prevention and transmission.

Here is some of what CIDRAP says on their site about CWD:

Chronic wasting disease (CWD) is a prion disease that affects several cervid species: deer, elk, reindeer, sika deer, and moose. CWD was first identified in 1967 in a captive mule deer living in a Colorado research facility. In 1981, CWD was detected for the first time in a wild cervid. Since these initial detections, CWD has been identified in 26 states and three Canadian provinces. It has also been detected in Finland, Norway, South Korea, and Sweden. ...continue reading "Chronic Wasting Disease Is Spreading In the United States"

The horrible disease called chronic wasting disease (CWD) is spreading among deer, moose, and elk throughout the US and Canada, and reindeer in Norway. This prion disease is similar to "mad cow disease" (bovine spongiform encephalopathy) in cattle, scrapie in sheep and goats, or Creutzfeldt-Jakob disease in humans.  In CWD the brains become progressively like sponges - riddled with holes, along with deterioration in brain function, behavioral changes, and eventually death. Especially worrisome is that it is an infectious disease.

The Centers for Disease Control (CDC) reported in January 2019 that chronic wasting disease has been reported in deer, moose, and elk across 26 US states and 3 Canadian provinces - in both free ranging herds and also some captive herds (such as in ranches and game farms). The following excerpts are from the  CDC site on Chronic Wasting Disease (CWD):

Chronic wasting disease (CWD) is a prion disease that affects deer, elk, reindeer, sika deer and moose. It has been found in some areas of North America, including Canada and the United States, Norway and South Korea. It may take over a year before an infected animal develops symptoms, which can include drastic weight loss (wasting), stumbling, listlessness and other neurologic symptoms. CWD can affect animals of all ages and some infected animals may die without ever developing the disease. CWD is fatal to animals and there are no treatments or vaccines.

To date, there have been no reported cases of CWD infection in people. However, animal studies suggest CWD poses a risk to some types of non-human primates, like monkeys, that eat meat from CWD-infected animals or come in contact with brain or body fluids from infected deer or elk. These studies raise concerns that there may also be a risk to people. Since 1997, the World Health Organization has recommended that it is important to keep the agents of all known prion diseases from entering the human food chain ...continue reading "Can A Person Get Chronic Wasting Disease From Eating Infected Meat?"