Yearly Archives: 2018

WI – DATCP Confirms Chronic Wasting Disease at Depopulated Iowa County Deer Farm

DATCP Confirms Chronic Wasting Disease at Depopulated Iowa County Deer Farm
Wisconsin Department of Agriculture, Trade and Consumer Protection sent this bulletin at 06/11/2018 08:07 AM CDT
DATCP Confirms Chronic Wasting Disease at Depopulated Iowa County Deer Farm
Release Date: June 11, 2018

Media Contacts:
Leeann Duwe, Communications Specialist, (608) 224-5005
Bill Cosh, Communications Director, (608) 224-5020

MADISON – The National Veterinary Services Laboratory (NVSL) confirmed that 21 whitetails from a deer farm in Iowa County tested positive for chronic wasting disease (CWD). On May 18, a team comprised of Department of Agriculture, Trade and Consumer Protection (DATCP) and U.S. Department of Agriculture-Animal and Plant Health Inspection Service veterinarians and animal health technicians humanely depopulated the farm’s 103 whitetail deer. CWD testing was done for 79 of those deer that were 16 months or older.

The deer farm had been quarantined since October when DATCP confirmed a deer shot on a hunting ranch in Waupaca County tested positive for CWD and was traced back to the farm. Since then, 10 additional deer harvested from the Waupaca County hunting ranch tested positive for CWD and were traced back to the Iowa County deer farm. State and federal indemnity payments are in the process of being determined.

CWD is a fatal, neurological disease of deer, elk, and moose caused by an infectious protein that affects the animal’s brain. Testing for CWD can only be performed after the deer’s death. For more information about CWD visit DATCP’s website. DATCP regulates deer farms for registration, recordkeeping, disease testing, movement, and permit requirements. To learn more about deer farm regulations in Wisconsin, visit DATCP’s farm-raised deer program. The Department of Natural Resources also provides resources for CWD and monitors the state’s wild white-tailed deer for CWD.

End of article

Full article can be found here: https://content.govdelivery.com/accounts/WIDATCP/bulletins/1f67719

IL – CHRONIC WASTING DISEASE (CWD) FOUND IN A CAPTIVE REINDEER IN NORTHERN ILLINOIS

SPRINGFIELD, IL – Chronic Wasting Disease (CWD) has been identified in one reindeer in a captive herd in northern Illinois. Affecting cervids (members of the deer family), CWD is a prion disease that causes brain and nerve issues and has proved to be fatal. A prion is an abnormally folded protein that can occur naturally or be acquired through contact with contaminated bodily fluids or a contaminated environment.

Symptoms include weight loss, stumbling, excessive thirst, drooling, and listlessness. An animal cannot be diagnosed with CWD by symptoms alone, as many of these are also indicators of other diseases. The only definitive way to diagnose CWD is through tissue testing after death. There is no USDA approved live animal test available to determine if an animal has CWD.

The affected reindeer was sampled on April 23 during a necropsy after the animal died unexpectedly. Tissues for CWD testing were submitted to the Wisconsin Veterinary Diagnostic Laboratory for analysis and the diagnosis was confirmed at the USDA National Veterinary Services Laboratory in Ames, IA on May 9. Samples were subsequently sent for DNA testing with confirmation received on June 5.

Prior to this detection, CWD had only been detected in one free-ranging reindeer herd in Norway in 2016. The susceptibly of reindeer to CWD had been much debated prior to this detection. This is the first known case of a reindeer being confirmed positive in North America.

The herd is a member of the IDOA’s Illinois Chronic Wasting Disease Certified Herd Program and has been placed under quarantine. The Illinois Department of Agriculture is working closely with the herd owner and USDA Veterinary Services to manage the herd.

There is no evidence of CWD being infectious to humans and it does not appear to naturally affect cattle or other domesticated animals.

Full article can be found here: https://www.agr.state.il.us/press.php?fn=chronic-wasting-disease-cwd-found-in-a–captive-reindeer-in-northern-il-2018

DATCP Quarantines Dane County Deer Farm and Richland County Elk Farm due to Positive CWD Results

Release Date: June 1, 2018

Media Contacts:
Leeann Duwe, Communications Specialist, 608-224-5005
Bill Cosh, Communications Director, 608-224-5020

MADISON – The Department of Agriculture, Trade and Consumer Protection has quarantined a deer farm in Dane County and an elk farm in Richland County due to chronic wasting disease (CWD). This is a result of the National Veterinary Services Laboratory in Ames, IA confirming on May 31 that samples from a 15-year old whitetail doe and a 2-year old elk cow were positive for CWD.

The 10-acre Dane County deer farm has six whitetail deer that have been registered with DATCP since 2003. The farm has been double-fenced since 2009. Since 2010, the farm has had 20 deer sampled for CWD.

Since March, the 20-acre Richland County elk farm has had 11 elk and there have been no elk purchases or sales on the farm in the past five years. Since 2007, the farm has had 25 elk sampled for CWD.

CWD is a fatal, neurological disease of deer, elk, and moose caused by an infectious protein that affects the animal’s brain. Testing for CWD can only be performed after the deer’s death. For more information about CWD visit DATCP’s website. DATCP regulates deer farms for registration, recordkeeping, disease testing, movement, and permit requirements. To learn more about deer farm regulations in Wisconsin, visit DATCP’s farm-raised deer program. The Department of Natural Resources also provides resources for CWD and monitors the state’s wild white-tailed deer for CWD.

End of article.
Article can found here: DATCP website

SCWDS Briefs

The latest issue of the SCWDS BRIEFS Newsletter is now available online.
Southeastern Cooperative Wildlife Disease Study
College of Veterinary Medicine
The University of Georgia
Athens, Georgia 30602
Volume 34 April 2018

CWD information begins on page 2

CO /WY – Long-Term Research Shows Domestic Cattle Resist Oral Exposure to Chronic Wasting Disease

May 23, 2018

Cattle fed extremely high oral doses of chronic wasting disease (CWD)-infected brain material or kept in heavily prion-contaminated facilities for 10 years showed no neurological signs of the disease.

The University of Wyoming’s Wyoming State Veterinary Laboratory (WSVL), the Colorado Division of Parks and Wildlife and the Wyoming Game and Fish Department (WGFD) collaborated in the $1.5 million study. Results will be published in the July issue of the Journal of Wildlife Diseases. Details of the study are available at bit.ly/10yearCWD.

As part of the experiment, 41 calves were randomly distributed to WGFD pens in Sybille Canyon in Wyoming, Colorado Division of Wildlife pens in Fort Collins, the WSVL and 18 to the National Animal Disease Center in Ames, Iowa.

“It was an elegant experiment in many ways,” says Hank Edwards, WGFD wildlife disease specialist. “You were taking cattle and housing them with heavily infected CWD elk and facilities. If CWD was going to jump the species barrier, it was likely you would see something in these cattle that had laid out in the pens for 10 years. That’s a big deal.”

The late Beth Williams, a veterinary sciences professor at UW, initiated the study. Authors of the article continued the research after she and husband, Tom Thorne, were killed in a motor vehicle crash in December 2004. Thorne had served as acting director of the WGFD and also had conducted CWD research.

Authors of the article are Donal O’Toole, a professor in the UW Department of Veterinary Sciences, which operates the WSVL; Michael Miller, a veterinary epidemiologist with the Colorado Division of Parks and Wildlife; Terry Kreeger, a wildlife veterinarian with the WGFD; and Jean Jewell, a molecular biologist with the WSVL. Williams is listed as lead author.

CWD is a contagious neurological disease affecting cervids: mule deer, white-tailed deer, elk and moose. An abnormal form of cellular protein, called a prion, in the central nervous system infects an animal by converting normal cellular protein into the abnormal form. Brains show a spongy degeneration, with animals displaying abnormal behavior, loss of bodily functions and emaciation. The disease is fatal. It is among a group of diseases called transmissible spongiform encephalopathies (TSE). TSE in cattle also is known as mad cow disease.

The long timespan of the research is important, as CWD is a slow disease, says Mary Wood, state WGFD veterinarian.

Even in deer or elk, animals can take years to succumb to the disease, she says. If the disease were to move into a different species, such as cattle, the timeline could be even longer for infection to occur.

“Many people are used to diseases moving quickly, but CWD doesn’t do that,” Wood says. “Nothing happens quickly, which is what makes this disease so insidious. It creeps up on you. It’s subtle. By the time you realize there is a problem, the disease is so widespread and established, it’s difficult to try to address.”

Some cattle can get a form of TSE when CWD material is injected directly into their brains, particularly when it is of white-tailed or mule deer origin, O’Toole says.

He says a more important question is one Williams and collaborators asked, as it involved a more natural challenge.

“What happens in cattle when you use a more real-life scenario involving oral exposure?” O’Toole says. “Plus, we used high oral doses and heavily contaminated environments. Cattle coming out of endemic CWD areas and slaughtered for human consumption are likely to pose no risk to people, based on the 10-year study and several earlier surveillance studies.”

That should be good news to livestock producers, Wood says.

“Managing disease in animals can be incredibly challenging,” she says. “It is even more challenging when the disease infects wildlife and is shared between wildlife and livestock.”

Wyoming cattle share the range with CWD-infected cervids, with CWD seen across almost the entire state, Edwards says.

“This research indicated CWD doesn’t easily transmit to cattle. Cattle do not get the disease due to a big species barrier, which helps restrict the disease to cervids,” he says.

Some Wyoming deer populations have 20-30 percent infection rates.

“We have few tools in the toolbox to manage the disease,” Edwards says. “We are trying different management efforts to hold the prevalence level, if not reduce the spread. That’s the big thing coming up next for CWD. How do we control it in our wildlife populations?”

End of article.
Article can be found here: http://www.uwyo.edu/uw/news/2018/05/long-term-research-shows-domestic-cattle-resist-oral-exposure-to-chronic-wasting-disease.html
Study can be found here: http://www.jwildlifedis.org/doi/pdf/10.7589/2017-12-299?code=wdas-site – CATTLE (BOSTAURUS) RESIST CHRONIC WASTING DISEASE FOLLOWING ORAL INOCULATION CHALLENGE OR TEN YEARS’ NATURAL EXPOSURE IN CONTAMINATED ENVIRONMENTS