Comments sought on revised plan to address chronic wasting disease in Wisconsin
Comments sought on revised plan to address chronic wasting disease in Wisconsin
Chronic Wasting Disease Response Plan
After more than 8 years of CWD management in Wisconsin, it is increasingly clear that controlling CWD in Wisconsin's free-ranging white-tailed deer will be extremely challenging and will require a commitment of human and financial resources over an extended period of time. The Department has been developing the following multi-year CWD response plan recognizing its public trust responsibility for managing wildlife and ensuring the health of wildlife populations in the state.
Wisconsin's Chronic Wasting Disease Response Plan: 2010-2025 Download the entire 15 year CWD Response Plan [PDF 488KB]
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/CWD_15plan.pdf
The headings highlighted in blue are the sections where significant changes have been made from the previous draft.
Executive Summary [PDF 50KB]
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/executive_summary.pdf
Background [PDF 344KB]
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/background.pdf
15-Year CWD Management Goal [PDF 33KB]
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/goal.pdf
Objectives, Actions and Anticipated Results [PDF 152KB]
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/objectives.pdf
Summary [PDF 53KB]
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/summary.pdf
Please use this questionnaire to leave your comments on the 15 Year CWD Plan.
https://doa.wi.gov/DNRSurveys/TakeSurvey.aspx?SurveyID=l61H794
Previous Draft: A Plan for Managing Chronic Wasting Disease in Wisconsin: The Next 5 Years The entire 5 year CWD Management Plan can be downloaded as a 1.5MB PDF file. This draft is to be used as a reference draft and is not the current version.
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/CWD_plan.pdf
Related Documents Management of Chronic Wasting Disease October 25, 2006 [PDF 60KB] - In this memo to the Natural Resources Board, former DNR Secretary Scott Hassett looks at some of the accomplishments state government has made since the discovery of CWD in Wisconsin, shares the department’s goals for managing the disease and emphasizes the importance of consulting with the public in establishing the next phase of CWD management in Wisconsin.
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/Hasset_CWDMgmt.pdf
From July of 2007 through January of 2008, a stakeholder advisory group (SAG) with diverse interests in the state’s wild deer herd met to offer recommendations on future CWD management direction to the Department and the Natural Resources Board. The SAG Final Report [PDF 541KB] includes a summary of the SAG's recommendations, results of the group's voting at the January 12th, 2008 meeting and minority reports.
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/SAGreport.pdf
CWD Final Rule [PDF 1MB] - This document includes a background memo, results of the public hearings associated with the rule proposal, and the wording of the final rule as approved by the Natural Resources Board on April 23, 2008.
http://dnr.wi.gov/org/nrboard/2008/April/04-08-3B1.pdf
External review of Chronic Wasting Disease (CWD) Management Plan.[PDF 239 KB] An expert panel was appointed by the state Natural Resources Board to review Wisconsin’s Chronic Wasting Disease Management Plan.(CWD)
http://dnr.wi.gov/org/land/wildlife/WHEALTH/issues/cwd/doc/External_Review.pdf
Contact Information For answers to questions relating to CWD in Wisconsin, email Wildlife Health.
Questions for Wildlife Management
http://dnr.wi.gov/org/land/wildlife/whealth/issues/CWD/plan.htm
Friday, May 14, 2010
Prion Strain Mutation Determined by Prion Protein Conformational Compatibility and Primary Structure
Published Online May 13, 2010 Science DOI: 10.1126/science.1187107 Science Express Index
http://chronic-wasting-disease.blogspot.com/2010/05/prion-strain-mutation-determined-by.html
Thursday, June 03, 2010
Prion Strain Mutation and Selection John Collinge MEDICINE
http://chronic-wasting-disease.blogspot.com/2010/06/prion-strain-mutation-and-selection.html
P35
ADAPTATION OF CHRONIC WASTING DISEASE (CWD) INTO HAMSTERS, EVIDENCE OF A WISCONSIN STRAIN OF CWD
Chad Johnson1, Judd Aiken2,3,4 and Debbie McKenzie4,5 1 Department of Comparative Biosciences, University of Wisconsin, Madison WI, USA 53706 2 Department of Agriculture, Food and Nutritional Sciences, 3 Alberta Veterinary Research Institute, 4.Center for Prions and Protein Folding Diseases, 5 Department of Biological Sciences, University of Alberta, Edmonton AB, Canada T6G 2P5
The identification and characterization of prion strains is increasingly important for the diagnosis and biological definition of these infectious pathogens. Although well-established in scrapie and, more recently, in BSE, comparatively little is known about the possibility of prion strains in chronic wasting disease (CWD), a disease affecting free ranging and captive cervids, primarily in North America. We have identified prion protein variants in the white-tailed deer population and demonstrated that Prnp genotype affects the susceptibility/disease progression of white-tailed deer to CWD agent. The existence of cervid prion protein variants raises the likelihood of distinct CWD strains. Small rodent models are a useful means of identifying prion strains. We intracerebrally inoculated hamsters with brain homogenates and phosphotungstate concentrated preparations from CWD positive hunter-harvested (Wisconsin CWD endemic area) and experimentally infected deer of known Prnp genotypes. These transmission studies resulted in clinical presentation in primary passage of concentrated CWD prions. Subclinical infection was established with the other primary passages based on the detection of PrPCWD in the brains of hamsters and the successful disease transmission upon second passage. Second and third passage data, when compared to transmission studies using different CWD inocula (Raymond et al., 2007) indicate that the CWD agent present in the Wisconsin white-tailed deer population is different than the strain(s) present in elk, mule-deer and white-tailed deer from the western United States endemic region.
http://www.istitutoveneto.it/prion_09/Abstracts_09.pdf
CWD FIRST AND SECOND PASSAGE TRANSMISSION TO CATTLE
Susceptibility of Cattle to First-passage Intracerebral Inoculation with Chronic Wasting Disease Agent from White-tailed Deer
A. N. Hamir1, J. M. Miller1, R. A. Kunkle1, S. M. Hall2 and J. A. Richt1 + Author Affiliations
1National Animal Disease Center, ARS, USDA, Ames, IA 2Pathobiology Laboratory, National Veterinary Services Laboratories, Ames, IA Dr. A. N. Hamir, National Animal Disease Center, ARS, USDA, 2300 Dayton Avenue, PO Box 70, Ames, IA 50010 (USA). E-mail: ahamir@nadc.ars.usda.gov. Abstract Fourteen, 3-month-old calves were intracerebrally inoculated with the agent of chronic wasting disease (CWD) from white-tailed deer (CWDwtd) to compare the clinical signs and neuropathologic findings with those of certain other transmissible spongiform encephalopathies (TSE, prion diseases) that have been shown to be experimentally transmissible to cattle (sheep scrapie, CWD of mule deer [CWDmd], bovine spongiform encephalopathy [BSE], and transmissible mink encephalopathy). Two uninoculated calves served as controls. Within 26 months postinoculation (MPI), 12 inoculated calves had lost considerable weight and eventually became recumbent. Of the 12 inoculated calves, 11 (92%) developed clinical signs. Although spongiform encephalopathy (SE) was not observed, abnormal prion protein (PrPd) was detected by immunohistochemistry (IHC) and Western blot (WB) in central nervous system tissues. The absence of SE with presence of PrPd has also been observed when other TSE agents (scrapie and CWDmd) were similarly inoculated into cattle. The IHC and WB findings suggest that the diagnostic techniques currently used to confirm BSE would detect CWDwtd in cattle, should it occur naturally. Also, the absence of SE and a distinctive IHC pattern of CWDwtd and CWDmd in cattle suggests that it should be possible to distinguish these conditions from other TSEs that have been experimentally transmitted to cattle.
http://vet.sagepub.com/content/44/4/487
second passage is even worse ;
Experimental Second Passage of Chronic Wasting Disease (CWDmule deer) Agent to Cattle
A. N. Hamir, R. A. Kunkle, J. M. Miller, J. J. Greenlee and J. A. Richt Agricultural Research Service, United States Department of Agriculture, National Animal Disease Center, 2300 Dayton Avenue, P.O. Box 70, Ames, IA 50010, USA
Summary
To compare clinicopathological findings in first and second passage chronic wasting disease (CWDmule deer) in cattle, six calves were inoculated intracerebrally with brain tissue derived froma first-passageCWD-affected calf in an earlier experiment. Two uninoculated calves served as controls. The inoculated animals began to lose both appetite and weight 10–12 months later, and five subsequently developed clinical signs of central nervous system (CNS) abnormality. By 16.5 months, all cattle had been subjected to euthanasia because of poor prognosis. None of the animals showed microscopical lesions of spongiform encephalopathy (SE) but PrPres was detected in their CNS tissues by immunohistochemistry (IHC) and rapid Western blot (WB) techniques. Thus, intracerebrally inoculated cattle not only amplified CWD PrPres from mule deer but also developed clinicalCNSsigns in the absence of SElesions.This situation has also been shown to occur in cattle inoculated with the scrapie agent. The study confirmed that the diagnostic techniques currently used for diagnosis of bovine spongiformencephalopathy (BSE) in theUS would detect CWDin cattle, should it occur naturally. Furthermore, it raised the possibility of distinguishing CWDfromBSE in cattle, due to the absence of neuropathological lesions and to a distinctive multifocal distribution of PrPres, as demonstrated by IHC which, in this study, appeared to be more sensitive than the WB technique. Published by Elsevier Ltd. Keywords: cattle; chronic wasting disease (CWD); deer; transmissible spongiform encephalopathy (TSE)
snip...
Discussion CWD, like all other TSEs, is characterized by a long incubation period, which in deer is seldom less than 18 months (Williams and Young, 1992). In an experimental study of cattle inoculated intracerebrally with CWD from mule deer (first passage), amplification of PrPres was demonstrated in only five of 13 (38%) cattle, after incubation periods that ranged from 23 to 63 months (Hamir et al., 2001a, 2005a). In contrast, all inoculated cattle in the present study were positive for PrPres within 16.5 months. This increased attack rate with shorter incubation periods probably indicates adaptation of the CWDmule deer agent to a new host.
snip...
The uniform susceptibility, relatively short incubation, and absence of microscopical lesions in cattle given CWD brain material passaged once through cattle resembled findings in cattle inoculated intracerebrally with the scrapie agent (Cutlip et al., 1997). In that experiment, 100% of cattle died 14–18 months after inoculation with material from the first cattle-passage of a US strain of the scrapie agent; none showed microscopical lesions and all were positive for PrPres.
http://ddr.nal.usda.gov/bitstream/10113/34009/1/IND43787291.pdf
Saturday, June 12, 2010
PUBLICATION REQUEST AND FOIA REQUEST Project Number: 3625-32000-086-05 Study of Atypical Bse
http://bse-atypical.blogspot.com/2010/06/publication-request-and-foia-request.html
Saturday, June 5, 2010
Research Project: Transmissible Spongiform Encephalopathies: Identification of atypical scrapie in Canadian sheep
http://nor-98.blogspot.com/2010/06/research-project-transmissible.html
Sunday, April 12, 2009
CWD UPDATE Infection Studies in Two Species of Non-Human Primates and one Environmental reservoir infectivity study and evidence of two strains
http://chronic-wasting-disease.blogspot.com/2009/04/cwd-update-infection-studies-in-two.html
Experimental oral transmission of chronic wasting disease to red deer (Cervus elaphus elaphus): Early detection and late stage distribution of protease-resistant prion protein
Aru Balachandran, Noel P. Harrington, James Algire, Andrei Soutyrine, Terry R. Spraker, Martin Jeffrey, Lorenzo González, Katherine I. O’Rourke
Abstract —
Chronic wasting disease (CWD), an important emerging prion disease of cervids, is readily transmitted by intracerebral or oral inoculation from deer-to-deer and elk-to-elk, suggesting the latter is a natural route of exposure. Studies of host range susceptibility to oral infection, particularly of those species found in habitats where CWD currently exists are imperative. This report describes the experimental transmission of CWD to red deer following oral inoculation with infectious CWD material of elk origin. At 18 to 20 months post-inoculation, mild to moderate neurological signs and weight loss were observed and animals were euthanized and tested using 3 conventional immunological assays. The data indicate that red deer are susceptible to oral challenge and that tissues currently used for CWD diagnosis show strong abnormal prion (PrPCWD) accumulation. Widespread peripheral PrPCWD deposition involves lymphoreticular tissues, endocrine tissues, and cardiac muscle and suggests a potential source of prion infectivity, a means of horizontal transmission and carrier state.
Can Vet J 2010;51:169–178
http://canadianveterinarians.net/publications-journal-issue-abstracts.aspx
Chronic wasting disease (CWD), an important emerging prion disease of cervids, is readily transmitted by intracerebral or oral inoculation from deer-to-deer and elk-to-elk, suggesting the latter is a natural route of exposure.
http://canadianveterinarians.net/publications-journal-issue-abstracts.aspx
Potential Venison Exposure Among FoodNet Population Survey Respondents, 2006-2007
Ryan A. Maddox1*, Joseph Y. Abrams1, Robert C. Holman1, Lawrence B. Schonberger1, Ermias D. Belay1 Division of Viral and Rickettsial Diseases, National Center for Zoonotic, Vector-Borne, and Enteric Diseases, Centers for Disease Control and Prevention, Atlanta, GA *Corresponding author e-mail: rmaddox@cdc.gov
The foodborne transmission of bovine spongiform encephalopathy to humans, resulting in variant Creutzfeldt-Jakob disease, indicates that humans can be susceptible to animal prion diseases. However, it is not known whether foodborne exposure to the agent causing chronic wasting disease (CWD) in cervids can cause human disease. The United States Foodborne Diseases Active Surveillance Network (FoodNet) conducts surveillance for foodborne diseases through an extensive survey administered to respondents in selected states. To describe the frequency of deer and elk hunting and venison consumption, five questions were included in the 2006-2007 FoodNet survey. This survey included 17,372 respondents in ten states: California, Colorado, Connecticut, Georgia, Maryland, Minnesota, New Mexico, New York, Oregon, and Tennessee. Of these respondents, 3,220 (18.5%) reported ever hunting deer or elk, with 217 (1.3%) reporting hunting in a CWD-endemic area (northeastern Colorado, southeastern Wyoming, and southwestern Nebraska). Of the 217 CWD-endemic area hunters, 74 (34.1%) were residents of Colorado. Respondents reporting hunting were significantly more likely to be male than female (prevalence ratio: 3.3, 95% confidence interval: 3.1-3.6) and, in general, older respondents were significantly more likely to report hunting than younger respondents. Venison consumption was reported by more than half (67.4%) of the study population, and most venison consumers (94.1%) reported that at least half of their venison came from the wild. However, more than half (59.1%) of the consumers reported eating venison only one to five times in their life or only once or twice a year. These findings indicate that a high percentage of the United States population engages in hunting and/or venison consumption. If CWD continues to spread to more areas across the country, a substantial number of people could potentially be exposed to the infectious agent.
http://www.cwd-info.org/pdf/3rd_CWD_Symposium_utah.pdf
Title: Experimental oral transmission of chronic wasting disease (CWD) to red deer (Cervus elaphus elaphus): early detection and late stage distribution of protease-resistant protein (PrP-res)
Balachandran, A - CANADIAN FOOD INSPCTN AG Harrington, Noel - CANADIAN FOOD INSPCTN AG Algire, James - CANADIAN FOOD INSPCTN AG Souyrine, Andre - CANADIAN FOOD INSPCTN AG Orourke, Katherine Spraker, Terry - COLORADO ST UNIV
Submitted to: Canadian Journal of Veterinary Research Publication Type: Peer Reviewed Journal Publication Acceptance Date: December 1, 2008 Publication Date: N/A
Interpretive Summary: Farmed cervids may be exposed to the prion disorder chronic wasting disease through contact with free ranging or farmed infected Rocky Mountain elk, white tailed deer, mule deer, or moose. This is the first report of experimental transmission of chronic wasting disease to red deer, an economically important agricultural commodity in parts of North America. Brain tissue from infected Rocky Mountain elk was administered by the oral route of red deer. Deer were examined at 18 months after infection for evidence of abnormal prion protein, the marker for the disease. The abnormal protein was found throughout the brain, spinal cord and lymphoid tissues, with variable distribution in other organ systems. This finding confirms the potential susceptibility of this species to disease under natural conditions and the reliability of the current testing format for identifying the abnormal protein in the tissues routinely collected in surveillance programs. The widespread distribution of the abnormal protein in red deer indicates the potential for shedding of the agent into the environment. Technical Abstract: Chronic wasting disease CWD is the transmissible spongiform encephalopathy or prion disease of wild and farmed cervid ruminants, including Rocky Mountain elk (Cervus elaphus nelsoni), white tailed deer (Odocoileus virginianus), mule deer (Odocoileus hemionus), or moose (Alces alces). Reliable data on the susceptibility of other farmed cervid species, the distribution of the abnormal prion protein marker in brain and lymphoid tissues collected in surveillance programs, and the role of prion genotype are necessary for design of control programs for CWD in farmed cervids. In this study, red deer (Cervus elaphus elaphus) were exposed to the prion agent by oral administration of brain homogenates from infected Rocky Mountain elk. Antemortem testing was performed at 7 months post infection and the deer were euthanized when clinical disease was observed at approximately 18 months after infection. The abnormal prion protein was assayed by immunohistochemistry, enzyme linked immunosorbent assay and western blot. Abnormal prion protein was found in the spinal cord, brainstem, cerebellum, midbrain, thalamus, and cerebrum in all 4 infected red deer. Most of the lymph nodes throughout the body were positive for abnormal prion proteins. Abnromal prion protein was observed in some additional peripheral tissues in some but not all of the deer. In particular, most areas of the gastrointestinal tract were positive for abnormal prions, although the salivary glands were rarely positive. This study demonstrates the potential for oral transmission of chronic wasting disease to red deer and confirms the usefulness of the current testing methods for post mortem diagnosis of the disease in this species.
http://www.ars.usda.gov/research/publications/publications.htm?seq_no_115=228787
Oral transmission and early lymphoid tropism of chronic wasting disease PrPres in mule deer fawns (Odocoileus hemionus )
Christina J. Sigurdson1, Elizabeth S. Williams2, Michael W. Miller3, Terry R. Spraker1,4, Katherine I. O'Rourke5 and Edward A. Hoover1
Mule deer fawns (Odocoileus hemionus) were inoculated orally with a brain homogenate prepared from mule deer with naturally occurring chronic wasting disease (CWD), a prion-induced transmissible spongiform encephalopathy. Fawns were necropsied and examined for PrP res, the abnormal prion protein isoform, at 10, 42, 53, 77, 78 and 80 days post-inoculation (p.i.) using an immunohistochemistry assay modified to enhance sensitivity. PrPres was detected in alimentary-tract-associated lymphoid tissues (one or more of the following: retropharyngeal lymph node, tonsil, Peyer's patch and ileocaecal lymph node) as early as 42 days p.i. and in all fawns examined thereafter (53 to 80 days p.i.). No PrPres staining was detected in lymphoid tissue of three control fawns receiving a control brain inoculum, nor was PrPres detectable in neural tissue of any fawn. PrPres-specific staining was markedly enhanced by sequential tissue treatment with formic acid, proteinase K and hydrated autoclaving prior to immunohistochemical staining with monoclonal antibody F89/160.1.5. These results indicate that CWD PrP res can be detected in lymphoid tissues draining the alimentary tract within a few weeks after oral exposure to infectious prions and may reflect the initial pathway of CWD infection in deer. The rapid infection of deer fawns following exposure by the most plausible natural route is consistent with the efficient horizontal transmission of CWD in nature and enables accelerated studies of transmission and pathogenesis in the native species.
snip...
These results indicate that mule deer fawns develop detectable PrP res after oral exposure to an inoculum containing CWD prions. In the earliest post-exposure period, CWD PrPres was traced to the lymphoid tissues draining the oral and intestinal mucosa (i.e. the retropharyngeal lymph nodes, tonsil, ileal Peyer's patches and ileocaecal lymph nodes), which probably received the highest initial exposure to the inoculum. Hadlow et al. (1982) demonstrated scrapie agent in the tonsil, retropharyngeal and mesenteric lymph nodes, ileum and spleen in a 10-month-old naturally infected lamb by mouse bioassay. Eight of nine sheep had infectivity in the retropharyngeal lymph node. He concluded that the tissue distribution suggested primary infection via the gastrointestinal tract. The tissue distribution of PrPres in the early stages of infection in the fawns is strikingly similar to that seen in naturally infected sheep with scrapie. These findings support oral exposure as a natural route of CWD infection in deer and support oral inoculation as a reasonable exposure route for experimental studies of CWD.
snip...
http://vir.sgmjournals.org/cgi/content/full/80/10/2757
see full text ;
http://chronic-wasting-disease.blogspot.com/2009/09/experimental-oral-transmission-of.html
Sunday, December 06, 2009
Detection of Sub-Clinical CWD Infection in Conventional Test-Negative Deer Long after Oral Exposure to Urine and Feces from CWD+ Deer
http://chronic-wasting-disease.blogspot.com/2009/12/detection-of-sub-clinical-cwd-infection.html
Wednesday, March 18, 2009
Detection of CWD Prions in Urine and Saliva of Deer by Transgenic Mouse Bioassay
http://chronic-wasting-disease.blogspot.com/2009/03/detection-of-cwd-prions-in-urine-and.html
Tuesday, June 16, 2009
Infectious Prions in Pre-Clinical Deer and Transmission of Chronic Wasting Disease Solely by Environmental Exposure
http://chronic-wasting-disease.blogspot.com/2009/06/infectious-prions-in-pre-clinical-deer.html
Wednesday, October 14, 2009
Detection of protease-resistant cervid prion protein in water from a CWD-endemic area
http://chronic-wasting-disease.blogspot.com/2009/10/detection-of-protease-resistant-cervid.html
AS THE CROW FLIES, SO DOES CWD
Sunday, November 01, 2009
American crows (Corvus brachyrhynchos) and potential spreading of CWD through feces of digested infectious carcases
http://chronic-wasting-disease.blogspot.com/2009/11/american-crows-corvus-brachyrhynchos.html
Wednesday, January 07, 2009
CWD to tighten taxidermy rules Hunters need to understand regulations
http://chronic-wasting-disease.blogspot.com/2009/01/cwd-to-tighten-taxidermy-rules-hunters.html
ALSO, NOTE MINERAL LICKS A POSSIBLE SOURCE AND TRANSMISSION MODE FOR CWD ;
http://chronic-wasting-disease.blogspot.com/2009/08/third-international-cwd-symposium-july.html
http://www.cwd-info.org/pdf/3rd_CWD_Symposium_utah.pdf
CWD, GAME FARMS, BAITING, AND POLITICS
http://chronic-wasting-disease.blogspot.com/2009/01/cwd-game-farms-baiting-and-politics.html
NOT only muscle, but now fat of CWD infected deer holds infectivity of the TSE (prion) agent. ...TSS
Monday, July 06, 2009
Prion infectivity in fat of deer with Chronic Wasting Disease
http://chronic-wasting-disease.blogspot.com/2009/07/prion-infectivity-in-fat-of-deer-with.html
Friday, February 20, 2009
Both Sides of the Fence: A Strategic Review of Chronic Wasting Disease
http://chronic-wasting-disease.blogspot.com/2009/02/both-sides-of-fence-strategic-review-of.html
Saturday, September 06, 2008
Chronic wasting disease in a Wisconsin white-tailed deer farm 79% INFECTION RATE
Contents: September 1 2008, Volume 20, Issue 5
snip...see full text ;
http://chronic-wasting-disease.blogspot.com/2008/11/commentary-crimes-hurt-essence-of.html
Tuesday, February 09, 2010
Chronic Wasting Disease: Surveillance Update North America: February 2010
***
>>> In addition, we documented horizontal transmission of CWD from inoculated mice and to un-inoculated cohabitant cage-mates. <<<
http://ajp.amjpathol.org/cgi/content/abstract/ajpath.2010.090710v1
disturbing. ...TSS
http://chronic-wasting-disease.blogspot.com/2010/02/chronic-wasting-disease-surveillance.html
CHRONIC WASTING DISEASE BLOG
http://chronic-wasting-disease.blogspot.com/
Terry S. Singeltary Sr. P.O. Box 42 Bacliff, Texas USA 77518
Chronic Wasting Disease Response Plan
After more than 8 years of CWD management in Wisconsin, it is increasingly clear that controlling CWD in Wisconsin's free-ranging white-tailed deer will be extremely challenging and will require a commitment of human and financial resources over an extended period of time. The Department has been developing the following multi-year CWD response plan recognizing its public trust responsibility for managing wildlife and ensuring the health of wildlife populations in the state.
Wisconsin's Chronic Wasting Disease Response Plan: 2010-2025 Download the entire 15 year CWD Response Plan [PDF 488KB]
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/CWD_15plan.pdf
The headings highlighted in blue are the sections where significant changes have been made from the previous draft.
Executive Summary [PDF 50KB]
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/executive_summary.pdf
Background [PDF 344KB]
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/background.pdf
15-Year CWD Management Goal [PDF 33KB]
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/goal.pdf
Objectives, Actions and Anticipated Results [PDF 152KB]
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/objectives.pdf
Summary [PDF 53KB]
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/summary.pdf
Please use this questionnaire to leave your comments on the 15 Year CWD Plan.
https://doa.wi.gov/DNRSurveys/TakeSurvey.aspx?SurveyID=l61H794
Previous Draft: A Plan for Managing Chronic Wasting Disease in Wisconsin: The Next 5 Years The entire 5 year CWD Management Plan can be downloaded as a 1.5MB PDF file. This draft is to be used as a reference draft and is not the current version.
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/CWD_plan.pdf
Related Documents Management of Chronic Wasting Disease October 25, 2006 [PDF 60KB] - In this memo to the Natural Resources Board, former DNR Secretary Scott Hassett looks at some of the accomplishments state government has made since the discovery of CWD in Wisconsin, shares the department’s goals for managing the disease and emphasizes the importance of consulting with the public in establishing the next phase of CWD management in Wisconsin.
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/Hasset_CWDMgmt.pdf
From July of 2007 through January of 2008, a stakeholder advisory group (SAG) with diverse interests in the state’s wild deer herd met to offer recommendations on future CWD management direction to the Department and the Natural Resources Board. The SAG Final Report [PDF 541KB] includes a summary of the SAG's recommendations, results of the group's voting at the January 12th, 2008 meeting and minority reports.
http://dnr.wi.gov/org/land/wildlife/whealth/issues/cwd/doc/SAGreport.pdf
CWD Final Rule [PDF 1MB] - This document includes a background memo, results of the public hearings associated with the rule proposal, and the wording of the final rule as approved by the Natural Resources Board on April 23, 2008.
http://dnr.wi.gov/org/nrboard/2008/April/04-08-3B1.pdf
External review of Chronic Wasting Disease (CWD) Management Plan.[PDF 239 KB] An expert panel was appointed by the state Natural Resources Board to review Wisconsin’s Chronic Wasting Disease Management Plan.(CWD)
http://dnr.wi.gov/org/land/wildlife/WHEALTH/issues/cwd/doc/External_Review.pdf
Contact Information For answers to questions relating to CWD in Wisconsin, email Wildlife Health.
Questions for Wildlife Management
http://dnr.wi.gov/org/land/wildlife/whealth/issues/CWD/plan.htm
Friday, May 14, 2010
Prion Strain Mutation Determined by Prion Protein Conformational Compatibility and Primary Structure
Published Online May 13, 2010 Science DOI: 10.1126/science.1187107 Science Express Index
http://chronic-wasting-disease.blogspot.com/2010/05/prion-strain-mutation-determined-by.html
Thursday, June 03, 2010
Prion Strain Mutation and Selection John Collinge MEDICINE
http://chronic-wasting-disease.blogspot.com/2010/06/prion-strain-mutation-and-selection.html
P35
ADAPTATION OF CHRONIC WASTING DISEASE (CWD) INTO HAMSTERS, EVIDENCE OF A WISCONSIN STRAIN OF CWD
Chad Johnson1, Judd Aiken2,3,4 and Debbie McKenzie4,5 1 Department of Comparative Biosciences, University of Wisconsin, Madison WI, USA 53706 2 Department of Agriculture, Food and Nutritional Sciences, 3 Alberta Veterinary Research Institute, 4.Center for Prions and Protein Folding Diseases, 5 Department of Biological Sciences, University of Alberta, Edmonton AB, Canada T6G 2P5
The identification and characterization of prion strains is increasingly important for the diagnosis and biological definition of these infectious pathogens. Although well-established in scrapie and, more recently, in BSE, comparatively little is known about the possibility of prion strains in chronic wasting disease (CWD), a disease affecting free ranging and captive cervids, primarily in North America. We have identified prion protein variants in the white-tailed deer population and demonstrated that Prnp genotype affects the susceptibility/disease progression of white-tailed deer to CWD agent. The existence of cervid prion protein variants raises the likelihood of distinct CWD strains. Small rodent models are a useful means of identifying prion strains. We intracerebrally inoculated hamsters with brain homogenates and phosphotungstate concentrated preparations from CWD positive hunter-harvested (Wisconsin CWD endemic area) and experimentally infected deer of known Prnp genotypes. These transmission studies resulted in clinical presentation in primary passage of concentrated CWD prions. Subclinical infection was established with the other primary passages based on the detection of PrPCWD in the brains of hamsters and the successful disease transmission upon second passage. Second and third passage data, when compared to transmission studies using different CWD inocula (Raymond et al., 2007) indicate that the CWD agent present in the Wisconsin white-tailed deer population is different than the strain(s) present in elk, mule-deer and white-tailed deer from the western United States endemic region.
http://www.istitutoveneto.it/prion_09/Abstracts_09.pdf
CWD FIRST AND SECOND PASSAGE TRANSMISSION TO CATTLE
Susceptibility of Cattle to First-passage Intracerebral Inoculation with Chronic Wasting Disease Agent from White-tailed Deer
A. N. Hamir1, J. M. Miller1, R. A. Kunkle1, S. M. Hall2 and J. A. Richt1 + Author Affiliations
1National Animal Disease Center, ARS, USDA, Ames, IA 2Pathobiology Laboratory, National Veterinary Services Laboratories, Ames, IA Dr. A. N. Hamir, National Animal Disease Center, ARS, USDA, 2300 Dayton Avenue, PO Box 70, Ames, IA 50010 (USA). E-mail: ahamir@nadc.ars.usda.gov. Abstract Fourteen, 3-month-old calves were intracerebrally inoculated with the agent of chronic wasting disease (CWD) from white-tailed deer (CWDwtd) to compare the clinical signs and neuropathologic findings with those of certain other transmissible spongiform encephalopathies (TSE, prion diseases) that have been shown to be experimentally transmissible to cattle (sheep scrapie, CWD of mule deer [CWDmd], bovine spongiform encephalopathy [BSE], and transmissible mink encephalopathy). Two uninoculated calves served as controls. Within 26 months postinoculation (MPI), 12 inoculated calves had lost considerable weight and eventually became recumbent. Of the 12 inoculated calves, 11 (92%) developed clinical signs. Although spongiform encephalopathy (SE) was not observed, abnormal prion protein (PrPd) was detected by immunohistochemistry (IHC) and Western blot (WB) in central nervous system tissues. The absence of SE with presence of PrPd has also been observed when other TSE agents (scrapie and CWDmd) were similarly inoculated into cattle. The IHC and WB findings suggest that the diagnostic techniques currently used to confirm BSE would detect CWDwtd in cattle, should it occur naturally. Also, the absence of SE and a distinctive IHC pattern of CWDwtd and CWDmd in cattle suggests that it should be possible to distinguish these conditions from other TSEs that have been experimentally transmitted to cattle.
http://vet.sagepub.com/content/44/4/487
second passage is even worse ;
Experimental Second Passage of Chronic Wasting Disease (CWDmule deer) Agent to Cattle
A. N. Hamir, R. A. Kunkle, J. M. Miller, J. J. Greenlee and J. A. Richt Agricultural Research Service, United States Department of Agriculture, National Animal Disease Center, 2300 Dayton Avenue, P.O. Box 70, Ames, IA 50010, USA
Summary
To compare clinicopathological findings in first and second passage chronic wasting disease (CWDmule deer) in cattle, six calves were inoculated intracerebrally with brain tissue derived froma first-passageCWD-affected calf in an earlier experiment. Two uninoculated calves served as controls. The inoculated animals began to lose both appetite and weight 10–12 months later, and five subsequently developed clinical signs of central nervous system (CNS) abnormality. By 16.5 months, all cattle had been subjected to euthanasia because of poor prognosis. None of the animals showed microscopical lesions of spongiform encephalopathy (SE) but PrPres was detected in their CNS tissues by immunohistochemistry (IHC) and rapid Western blot (WB) techniques. Thus, intracerebrally inoculated cattle not only amplified CWD PrPres from mule deer but also developed clinicalCNSsigns in the absence of SElesions.This situation has also been shown to occur in cattle inoculated with the scrapie agent. The study confirmed that the diagnostic techniques currently used for diagnosis of bovine spongiformencephalopathy (BSE) in theUS would detect CWDin cattle, should it occur naturally. Furthermore, it raised the possibility of distinguishing CWDfromBSE in cattle, due to the absence of neuropathological lesions and to a distinctive multifocal distribution of PrPres, as demonstrated by IHC which, in this study, appeared to be more sensitive than the WB technique. Published by Elsevier Ltd. Keywords: cattle; chronic wasting disease (CWD); deer; transmissible spongiform encephalopathy (TSE)
snip...
Discussion CWD, like all other TSEs, is characterized by a long incubation period, which in deer is seldom less than 18 months (Williams and Young, 1992). In an experimental study of cattle inoculated intracerebrally with CWD from mule deer (first passage), amplification of PrPres was demonstrated in only five of 13 (38%) cattle, after incubation periods that ranged from 23 to 63 months (Hamir et al., 2001a, 2005a). In contrast, all inoculated cattle in the present study were positive for PrPres within 16.5 months. This increased attack rate with shorter incubation periods probably indicates adaptation of the CWDmule deer agent to a new host.
snip...
The uniform susceptibility, relatively short incubation, and absence of microscopical lesions in cattle given CWD brain material passaged once through cattle resembled findings in cattle inoculated intracerebrally with the scrapie agent (Cutlip et al., 1997). In that experiment, 100% of cattle died 14–18 months after inoculation with material from the first cattle-passage of a US strain of the scrapie agent; none showed microscopical lesions and all were positive for PrPres.
http://ddr.nal.usda.gov/bitstream/10113/34009/1/IND43787291.pdf
Saturday, June 12, 2010
PUBLICATION REQUEST AND FOIA REQUEST Project Number: 3625-32000-086-05 Study of Atypical Bse
http://bse-atypical.blogspot.com/2010/06/publication-request-and-foia-request.html
Saturday, June 5, 2010
Research Project: Transmissible Spongiform Encephalopathies: Identification of atypical scrapie in Canadian sheep
http://nor-98.blogspot.com/2010/06/research-project-transmissible.html
Sunday, April 12, 2009
CWD UPDATE Infection Studies in Two Species of Non-Human Primates and one Environmental reservoir infectivity study and evidence of two strains
http://chronic-wasting-disease.blogspot.com/2009/04/cwd-update-infection-studies-in-two.html
Experimental oral transmission of chronic wasting disease to red deer (Cervus elaphus elaphus): Early detection and late stage distribution of protease-resistant prion protein
Aru Balachandran, Noel P. Harrington, James Algire, Andrei Soutyrine, Terry R. Spraker, Martin Jeffrey, Lorenzo González, Katherine I. O’Rourke
Abstract —
Chronic wasting disease (CWD), an important emerging prion disease of cervids, is readily transmitted by intracerebral or oral inoculation from deer-to-deer and elk-to-elk, suggesting the latter is a natural route of exposure. Studies of host range susceptibility to oral infection, particularly of those species found in habitats where CWD currently exists are imperative. This report describes the experimental transmission of CWD to red deer following oral inoculation with infectious CWD material of elk origin. At 18 to 20 months post-inoculation, mild to moderate neurological signs and weight loss were observed and animals were euthanized and tested using 3 conventional immunological assays. The data indicate that red deer are susceptible to oral challenge and that tissues currently used for CWD diagnosis show strong abnormal prion (PrPCWD) accumulation. Widespread peripheral PrPCWD deposition involves lymphoreticular tissues, endocrine tissues, and cardiac muscle and suggests a potential source of prion infectivity, a means of horizontal transmission and carrier state.
Can Vet J 2010;51:169–178
http://canadianveterinarians.net/publications-journal-issue-abstracts.aspx
Chronic wasting disease (CWD), an important emerging prion disease of cervids, is readily transmitted by intracerebral or oral inoculation from deer-to-deer and elk-to-elk, suggesting the latter is a natural route of exposure.
http://canadianveterinarians.net/publications-journal-issue-abstracts.aspx
Potential Venison Exposure Among FoodNet Population Survey Respondents, 2006-2007
Ryan A. Maddox1*, Joseph Y. Abrams1, Robert C. Holman1, Lawrence B. Schonberger1, Ermias D. Belay1 Division of Viral and Rickettsial Diseases, National Center for Zoonotic, Vector-Borne, and Enteric Diseases, Centers for Disease Control and Prevention, Atlanta, GA *Corresponding author e-mail: rmaddox@cdc.gov
The foodborne transmission of bovine spongiform encephalopathy to humans, resulting in variant Creutzfeldt-Jakob disease, indicates that humans can be susceptible to animal prion diseases. However, it is not known whether foodborne exposure to the agent causing chronic wasting disease (CWD) in cervids can cause human disease. The United States Foodborne Diseases Active Surveillance Network (FoodNet) conducts surveillance for foodborne diseases through an extensive survey administered to respondents in selected states. To describe the frequency of deer and elk hunting and venison consumption, five questions were included in the 2006-2007 FoodNet survey. This survey included 17,372 respondents in ten states: California, Colorado, Connecticut, Georgia, Maryland, Minnesota, New Mexico, New York, Oregon, and Tennessee. Of these respondents, 3,220 (18.5%) reported ever hunting deer or elk, with 217 (1.3%) reporting hunting in a CWD-endemic area (northeastern Colorado, southeastern Wyoming, and southwestern Nebraska). Of the 217 CWD-endemic area hunters, 74 (34.1%) were residents of Colorado. Respondents reporting hunting were significantly more likely to be male than female (prevalence ratio: 3.3, 95% confidence interval: 3.1-3.6) and, in general, older respondents were significantly more likely to report hunting than younger respondents. Venison consumption was reported by more than half (67.4%) of the study population, and most venison consumers (94.1%) reported that at least half of their venison came from the wild. However, more than half (59.1%) of the consumers reported eating venison only one to five times in their life or only once or twice a year. These findings indicate that a high percentage of the United States population engages in hunting and/or venison consumption. If CWD continues to spread to more areas across the country, a substantial number of people could potentially be exposed to the infectious agent.
http://www.cwd-info.org/pdf/3rd_CWD_Symposium_utah.pdf
Title: Experimental oral transmission of chronic wasting disease (CWD) to red deer (Cervus elaphus elaphus): early detection and late stage distribution of protease-resistant protein (PrP-res)
Balachandran, A - CANADIAN FOOD INSPCTN AG Harrington, Noel - CANADIAN FOOD INSPCTN AG Algire, James - CANADIAN FOOD INSPCTN AG Souyrine, Andre - CANADIAN FOOD INSPCTN AG Orourke, Katherine Spraker, Terry - COLORADO ST UNIV
Submitted to: Canadian Journal of Veterinary Research Publication Type: Peer Reviewed Journal Publication Acceptance Date: December 1, 2008 Publication Date: N/A
Interpretive Summary: Farmed cervids may be exposed to the prion disorder chronic wasting disease through contact with free ranging or farmed infected Rocky Mountain elk, white tailed deer, mule deer, or moose. This is the first report of experimental transmission of chronic wasting disease to red deer, an economically important agricultural commodity in parts of North America. Brain tissue from infected Rocky Mountain elk was administered by the oral route of red deer. Deer were examined at 18 months after infection for evidence of abnormal prion protein, the marker for the disease. The abnormal protein was found throughout the brain, spinal cord and lymphoid tissues, with variable distribution in other organ systems. This finding confirms the potential susceptibility of this species to disease under natural conditions and the reliability of the current testing format for identifying the abnormal protein in the tissues routinely collected in surveillance programs. The widespread distribution of the abnormal protein in red deer indicates the potential for shedding of the agent into the environment. Technical Abstract: Chronic wasting disease CWD is the transmissible spongiform encephalopathy or prion disease of wild and farmed cervid ruminants, including Rocky Mountain elk (Cervus elaphus nelsoni), white tailed deer (Odocoileus virginianus), mule deer (Odocoileus hemionus), or moose (Alces alces). Reliable data on the susceptibility of other farmed cervid species, the distribution of the abnormal prion protein marker in brain and lymphoid tissues collected in surveillance programs, and the role of prion genotype are necessary for design of control programs for CWD in farmed cervids. In this study, red deer (Cervus elaphus elaphus) were exposed to the prion agent by oral administration of brain homogenates from infected Rocky Mountain elk. Antemortem testing was performed at 7 months post infection and the deer were euthanized when clinical disease was observed at approximately 18 months after infection. The abnormal prion protein was assayed by immunohistochemistry, enzyme linked immunosorbent assay and western blot. Abnormal prion protein was found in the spinal cord, brainstem, cerebellum, midbrain, thalamus, and cerebrum in all 4 infected red deer. Most of the lymph nodes throughout the body were positive for abnormal prion proteins. Abnromal prion protein was observed in some additional peripheral tissues in some but not all of the deer. In particular, most areas of the gastrointestinal tract were positive for abnormal prions, although the salivary glands were rarely positive. This study demonstrates the potential for oral transmission of chronic wasting disease to red deer and confirms the usefulness of the current testing methods for post mortem diagnosis of the disease in this species.
http://www.ars.usda.gov/research/publications/publications.htm?seq_no_115=228787
Oral transmission and early lymphoid tropism of chronic wasting disease PrPres in mule deer fawns (Odocoileus hemionus )
Christina J. Sigurdson1, Elizabeth S. Williams2, Michael W. Miller3, Terry R. Spraker1,4, Katherine I. O'Rourke5 and Edward A. Hoover1
Mule deer fawns (Odocoileus hemionus) were inoculated orally with a brain homogenate prepared from mule deer with naturally occurring chronic wasting disease (CWD), a prion-induced transmissible spongiform encephalopathy. Fawns were necropsied and examined for PrP res, the abnormal prion protein isoform, at 10, 42, 53, 77, 78 and 80 days post-inoculation (p.i.) using an immunohistochemistry assay modified to enhance sensitivity. PrPres was detected in alimentary-tract-associated lymphoid tissues (one or more of the following: retropharyngeal lymph node, tonsil, Peyer's patch and ileocaecal lymph node) as early as 42 days p.i. and in all fawns examined thereafter (53 to 80 days p.i.). No PrPres staining was detected in lymphoid tissue of three control fawns receiving a control brain inoculum, nor was PrPres detectable in neural tissue of any fawn. PrPres-specific staining was markedly enhanced by sequential tissue treatment with formic acid, proteinase K and hydrated autoclaving prior to immunohistochemical staining with monoclonal antibody F89/160.1.5. These results indicate that CWD PrP res can be detected in lymphoid tissues draining the alimentary tract within a few weeks after oral exposure to infectious prions and may reflect the initial pathway of CWD infection in deer. The rapid infection of deer fawns following exposure by the most plausible natural route is consistent with the efficient horizontal transmission of CWD in nature and enables accelerated studies of transmission and pathogenesis in the native species.
snip...
These results indicate that mule deer fawns develop detectable PrP res after oral exposure to an inoculum containing CWD prions. In the earliest post-exposure period, CWD PrPres was traced to the lymphoid tissues draining the oral and intestinal mucosa (i.e. the retropharyngeal lymph nodes, tonsil, ileal Peyer's patches and ileocaecal lymph nodes), which probably received the highest initial exposure to the inoculum. Hadlow et al. (1982) demonstrated scrapie agent in the tonsil, retropharyngeal and mesenteric lymph nodes, ileum and spleen in a 10-month-old naturally infected lamb by mouse bioassay. Eight of nine sheep had infectivity in the retropharyngeal lymph node. He concluded that the tissue distribution suggested primary infection via the gastrointestinal tract. The tissue distribution of PrPres in the early stages of infection in the fawns is strikingly similar to that seen in naturally infected sheep with scrapie. These findings support oral exposure as a natural route of CWD infection in deer and support oral inoculation as a reasonable exposure route for experimental studies of CWD.
snip...
http://vir.sgmjournals.org/cgi/content/full/80/10/2757
see full text ;
http://chronic-wasting-disease.blogspot.com/2009/09/experimental-oral-transmission-of.html
Sunday, December 06, 2009
Detection of Sub-Clinical CWD Infection in Conventional Test-Negative Deer Long after Oral Exposure to Urine and Feces from CWD+ Deer
http://chronic-wasting-disease.blogspot.com/2009/12/detection-of-sub-clinical-cwd-infection.html
Wednesday, March 18, 2009
Detection of CWD Prions in Urine and Saliva of Deer by Transgenic Mouse Bioassay
http://chronic-wasting-disease.blogspot.com/2009/03/detection-of-cwd-prions-in-urine-and.html
Tuesday, June 16, 2009
Infectious Prions in Pre-Clinical Deer and Transmission of Chronic Wasting Disease Solely by Environmental Exposure
http://chronic-wasting-disease.blogspot.com/2009/06/infectious-prions-in-pre-clinical-deer.html
Wednesday, October 14, 2009
Detection of protease-resistant cervid prion protein in water from a CWD-endemic area
http://chronic-wasting-disease.blogspot.com/2009/10/detection-of-protease-resistant-cervid.html
AS THE CROW FLIES, SO DOES CWD
Sunday, November 01, 2009
American crows (Corvus brachyrhynchos) and potential spreading of CWD through feces of digested infectious carcases
http://chronic-wasting-disease.blogspot.com/2009/11/american-crows-corvus-brachyrhynchos.html
Wednesday, January 07, 2009
CWD to tighten taxidermy rules Hunters need to understand regulations
http://chronic-wasting-disease.blogspot.com/2009/01/cwd-to-tighten-taxidermy-rules-hunters.html
ALSO, NOTE MINERAL LICKS A POSSIBLE SOURCE AND TRANSMISSION MODE FOR CWD ;
http://chronic-wasting-disease.blogspot.com/2009/08/third-international-cwd-symposium-july.html
http://www.cwd-info.org/pdf/3rd_CWD_Symposium_utah.pdf
CWD, GAME FARMS, BAITING, AND POLITICS
http://chronic-wasting-disease.blogspot.com/2009/01/cwd-game-farms-baiting-and-politics.html
NOT only muscle, but now fat of CWD infected deer holds infectivity of the TSE (prion) agent. ...TSS
Monday, July 06, 2009
Prion infectivity in fat of deer with Chronic Wasting Disease
http://chronic-wasting-disease.blogspot.com/2009/07/prion-infectivity-in-fat-of-deer-with.html
Friday, February 20, 2009
Both Sides of the Fence: A Strategic Review of Chronic Wasting Disease
http://chronic-wasting-disease.blogspot.com/2009/02/both-sides-of-fence-strategic-review-of.html
Saturday, September 06, 2008
Chronic wasting disease in a Wisconsin white-tailed deer farm 79% INFECTION RATE
Contents: September 1 2008, Volume 20, Issue 5
snip...see full text ;
http://chronic-wasting-disease.blogspot.com/2008/11/commentary-crimes-hurt-essence-of.html
Tuesday, February 09, 2010
Chronic Wasting Disease: Surveillance Update North America: February 2010
***
>>> In addition, we documented horizontal transmission of CWD from inoculated mice and to un-inoculated cohabitant cage-mates. <<<
http://ajp.amjpathol.org/cgi/content/abstract/ajpath.2010.090710v1
disturbing. ...TSS
http://chronic-wasting-disease.blogspot.com/2010/02/chronic-wasting-disease-surveillance.html
CHRONIC WASTING DISEASE BLOG
http://chronic-wasting-disease.blogspot.com/
Terry S. Singeltary Sr. P.O. Box 42 Bacliff, Texas USA 77518
Labels: AEROSOLIZED PRIONS, CJD, COMMENTS, CWD, PLAN, REVISED, WISCONSIN
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