Chronic Wasting Disease, or CWD, is a deadly and incurable neurological illness.Idaho just received its second confirmed case in domestic elk.
What is Chronic Wasting Disease
CWD is a prion disease, a type of illness not caused by viruses or bacteria, but instead by misfolded proteins called prions. When enough prions enter the body, they can create a chain reaction of damaging normal proteins in the body which leads to cell destruction and neurological damage, and inevitably, death of the organism.
Prion diseases are currently incurable and the only known ones occur in mammals. CWD affects animals in the deer family (cervids) such as but not limited to: moose, caribou, mule deer, reindeer, red deer, and elk. CWD was first found in Colorado in 1967, but through the years has been detected across the globe.
“It’s in Asia, Europe and North America,” said Professor Mark Zabel with the Prion Research Center at Colorado State University
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How is it spread?
Zabel said that the disease can be transferred directly–for instance from a sick moose to a healthy moose–as well as transferred indirectly due to the prions’ infectious properties,
“…unlike many most other pathogens, it’s very stable in the environment. So it can remain infectious in the environment, in soil and landscapes. For years to decades.”
Prions get into the environment (soil, water, plants, etc) through excretion by infected animals, such as through their urine, feces, saliva, and decomposing bodies. Then, due to the prion’s very stable protein structure, they’re able to stay infectious for up to 20 years. This means other animals can pass through the environment, and pick up the prions laid decades past, and still get infected.
Abigail Moody
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Boise State Public Radio
CWD is difficult to detect because animals may be infected for long periods of time without showing signs due to the disease’s incubation period. On average, the time between initial infection and first signs of it is 18 to 24 months long.
Concerns of the Disease
Not only is CWD an ecological concern due to the difficulty of combating it, but it is also a severe economic issue regarding wildlife and agriculture governmental agencies. The most recent data shows the government as spent $280 million dollars on CWD from 2000-2021. A majority amount of that was spent by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service.
Idaho first saw CWD in wild mule deer in 2021. Within the past two months, there have been two confirmed cases of domestic elks that were from different elk farms, meaning, they couldn’t have infected one another. In Idaho’s 2021-2022 fiscal year, wildlife agencies spent close to $225,000 trying to combat CWD.
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Zabel told me his main concern as a scientist is “…this disease could spread to humans, you know. So it has some zoonotic potential, similar to another prion disease that people might be aware of called bovine spongiform encephalopathy or BSE. Probably more commonly known as mad cow disease.”
When someone eats beef contaminated with Mad Cow disease, a variant of the prion disease from the cow can be made to infect a human. For now, CWD does not have the ability to change to infect humans, but since it is a prion disease, it is possible that it could develop one.
What you can do to stay safe and help
Zabel encourages hunters to follow state practices to reduce the possible spread of CWD and to test their harvest before eating. There’s no evidence yet that CWD can transfer from cervid to human but Zabel told me,
“I would definitely not want to be the reference case. I don’t want to be patient zero.”
This past year, Idaho Fish and Game released hunting guidelines to reduce the spread of CWD . The agency also offers free testing kits for hunters to help track the disease by sending in samples of their game.
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Roger Phillips
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Idaho Fish and Game
Fish and Game staff take samples from deer for chronic wasting disease testing.
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GENESSE – The Avista planned power outage for Friday, April 24 in Genesee has been cancelled and rescheduled due to weather. Approximately 337 Avista electric customers in Genesee will experience a planned power outage on Tuesday, April 28. The planned outage will start at 8:00 a.m. and end at 4:00 p.m.
All affected customers will be notified in advance. Traffic control will be in place from Laurel Street north of Chestnut Street.
During this time, Avista crews will be replacing aging infrastructure, including power poles and equipment, in the area. These updates are part of Avista’s ongoing efforts to enhance the safety and reliability of its infrastructure.
GARDEN CITY – A Boise-area girl is competing in the 2026 Junior Ranger Competition, and she needs your vote to advance.
Eleven-year-old Cali Lindsay of Garden City is currently in the top 10 in her age group. The first place contestant in each group will advance to the semi-finals, which will wrap on July 17.
The final round concludes on July 24. The winner will be awarded $20,000 and be featured on the cover of Ranger Rick Magazine. They’ll also win a trip with Jeff Corwin.
Cali’s mom, Emily Edginton, tells EastIdahoNews.com how the competition works.
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“You’re allowed one free vote every 24 hours. People can also pay (to vote),” Edginton says. “The contestants have challenges every week to learn about animals and share what they’ve learned. People vote for the answer they like best. If you have enough votes, you move to the next round.”
Cali needs to secure enough votes by Thursday in order to advance to the next round.
The competition is a fundraiser for the National Wildlife Federation, the largest private, nonprofit conservation education and advocacy organization in the United States.
Edginton says they recently moved to Idaho from San Bernardino, California. Her daughter acquired a love of wildlife living in Lytle Creek, a community near the San Gabriel Mountains and San Bernardino National Forest.
“She’s already like a junior ranger. We picked up trash (in the forest) for fun,” Edginton says. “We try to keep it clean because we get a lot of visitors up there in the summertime and they trash the place. It affects the animals.”
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Edginton says they moved to Idaho in February to be closer to family.
She’s grateful her daughter can be part of what she feels is a great cause, and hopes to see her advance, and even win the tournament.
“It’s a good cause, plus it’s a learning experience,” says Edginton.
To vote for Cali or learn more, click here.
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