June 6, 2013
Fence opened at quarantined shooting preserve
By CHELSEA DAVIS Courier staff writer The Ottumwa Courier Fri Jun 07, 2013, 08:24 AM CDT BLOOMFIELD — The fence has been opened at a shooting preserve where a deer-killing disease was discovered last year, despite the facility being under quarantine. In the last year, three deer were discovered to be infected with chronic wasting disease (CWD) at Pine Ridge Hunting Lodge, a shooting preserve in Bloomfield. By Jan. 31, the facility was totally depopulated, said Iowa DNR deer biologist Tom Litchfield, meaning every deer was killed and tested for CWD. According to a memorandum of understanding, the fences must be maintained and the gates closed at the facility since it's under quarantine (animals cannot come in nor can they leave). "My understanding is that the gates were opened on the facility within the last week or two, and that also a portion of the fence near the main entrance had been taken down," Litchfield said. So far, it's unknown to IDNR officials who opened the fence at the 330-acre facility. "After visiting the area this week, it's clear the facility in Davis County is in violation of the quarantine, and it needs to be fixed promptly," said state Rep. Curt Hanson, D-Fairfield. "I've shared this information with the Iowa Department of Natural Resources, and they need to rectify this situation quickly to stop the spread of CWD." Litchfield said the animals at the preserve found to be infected with CWD were originally transported from a Cerro Gordo County breeding facility. "So the real question is, how did the Cerro Gordo breeding facility become infected?" Litchfield said. "That's unknown at this time, and it probably will remain that way." With constant buying, selling and trading of animals, as well as the transportation of semen to artificially inseminate does, there are several avenues for CWD to spread between facilities, he said.
Pine Ridge wasn't the only facility to receive infected deer from Cerro Gordo County, he said. A facility in Pottawatamie County also had reports of CWD-infected deer last fall. At this time, CWD is not known to spread to humans or domestic livestock. The disease is always fatal to deer and elk and to date, none have shown any resistance to it. "The infection rate within a population slowly builds through time, so you have wild populations in Colorado or Wyoming ...
with infection rates built up to 40 to 50 percent," he said. "So you have half of a herd out there infected who are ultimately going to die from this disease."
The disease is not known to spread to cattle, he said. "But mad cow disease wasn't known to spread to people either ... until it did," he said. "Then it became a big deal. And this disease [CWD] is in the exact same family of diseases." Litchfield said research has shown that the origin for CWD in deer and elk is "scrapie" — a disease plaguing sheep and goats — which is also the source for BSE, or "mad cow disease." "So you have CWD and BFE [mad cow disease], but the parent origin for those infectious types of prions may be the same disease," he said. A prion is a misfolded strand of protein that, when it infects an animal, causes other protein strands to take its shape and over time manifests itself in the nervous system. It then creates holes in the animal's brain. "With more and more holes in the brain, they steadily lose function until they've lost too much and die," he said. Right now, Litchfield hopes there are zero animals infected with CWD in Davis County. After concentrating CWD surveillance on wild deer in the perimeter of Pine Ridge in the last year, none registered positive for the disease. "That doesn't mean it hasn't escaped into the wild herd, but it's a good indication that if it has, it's a low infection rate," he said. "If we go three to four years without picking anything up outside, we can start to feel more comfortable that it's contained." But the disease has also become a political issue, he said. "Since animals in captive facilities are privately owned, when you talk about total depopulation and quarantine, then people begin to feel maybe their private rights are being trampled on," he said. Staff at Pine Ridge did not immediately return calls for comment. - See more at:
http://ottumwacourier.com/local/x74...ntined-shooting-preserve#sthash.MtesJnAF.dpuf
No mention of the decontamination that was performed in April. Once the animals were depopulated, the quarantine was lifted.