Sunday, March 06, 2016
2015-2016 CWD Surveillance Summary to Date 
CWD surveillance in Missouri includes two distinct sampling areas: CWD 
Management Zones and Statewide. CWD Management Zones include counties within 
approximately 25-miles of confirmed CWD detections in free-ranging deer. 
Statewide surveillance focuses on counties outside of established CWD Management 
Zones, and is designed to detect new areas of infection in the state. To date, 
CWD Management Zones include the following counties:
North Management Zone: Adair, Chariton, Knox, Linn, Macon, Putnam, 
Randolph, Schuyler, Scotland, Shelby and Sullivan counties
Central Management Zone: Boone, Callaway, Cole, Cooper, Miller, Moniteau, 
Morgan and Osage counties
Total CWD Samples Taken To Date Area CWD Not Detected CWD Positive Results 
Pending Total 
Central CWD Management Zone CWD Management Zone 2162 0 39 2201 
North CWD Management Zone CWD Management Zone 2499 6 120 2625 
Statewide (Outside of Zone) 2621 1 36 2658 
TOTAL 7282 7 195 7484 
A CWD surveillance season runs from July 1 through June 30 the following 
year. 
Surveillance Maps 
Can I Get It? 
As of 2014, there is no evidence that humans can be infected with CWD. 
However, research is ongoing to determine any public health impacts.
HOW BAD CAN IT GET? 
As of 2014, no human health risk has been reported.
SYMPTOMS IN HUMANS Currently, CWD is not known to infect people.
Safe for Pets? There is no evidence that CWD can be naturally transmitted 
to pets but, to be safe, animals that have tested positive for CWD should not be 
fed to pets.
Assessing Transmissible Spongiform Encephalopathy Species Barriers with an 
In Vitro Prion Protein Conversion Assay
Christopher J. Johnson1, Christina M. Carlson2, Aaron R. Morawski3, Alyson 
Manthei4, Neil R. Cashman5
1USGS National Wildlife Health Center, 2Department of Soil Science, 
University of Wisconsin–Madison, 3Laboratory of Immunology, National Institute 
of Allergy and Infectious Diseases, National Institutes of Health, 4Merial 
Veterinary Scholars Program, School of Veterinary Medicine, University of 
Wisconsin–Madison, 5Department of Neurology, University of British Columbia 
Summary 
Measuring the barrier to the interspecies transmission of prion diseases is 
challenging and typically involves animal challenges or biochemical assays. 
Here, we present an in vitro prion protein conversion assay with the ability to 
predict species barriers.
Date Published: 3/10/2015, Issue 97; doi: 10.3791/52522
Keywords: Medicine, Issue 97, Prion, species barrier, conversion, 
immunoblotting, transmissible spongiform encephalopathy, interspecies 
transmission Cite this Article 
Johnson, C. J., Carlson, C. M., Morawski, A. R., Manthei, A., Cashman, N. 
R. Assessing Transmissible Spongiform Encephalopathy Species Barriers with an In 
Vitro Prion Protein Conversion Assay. J. Vis. Exp. (97), e52522, 
doi:10.3791/52522 (2015). Abstract 
Studies to understanding interspecies transmission of transmissible 
spongiform encephalopathies (TSEs, prion diseases) are challenging in that they 
typically rely upon lengthy and costly in vivo animal challenge studies. A 
number of in vitro assays have been developed to aid in measuring prion species 
barriers, thereby reducing animal use and providing quicker results than animal 
bioassays. Here, we present the protocol for a rapid in vitro prion conversion 
assay called the conversion efficiency ratio (CER) assay. In this assay cellular 
prion protein (PrPC) from an uninfected host brain is denatured at both pH 7.4 
and 3.5 to produce two substrates. When the pH 7.4 substrate is incubated with 
TSE agent, the amount of PrPC that converts to a proteinase K (PK)-resistant 
state is modulated by the original host’s species barrier to the TSE agent. In 
contrast, PrPC in the pH 3.5 substrate is misfolded by any TSE agent. By 
comparing the amount of PK-resistant prion protein in the two substrates, an 
assessment of the host’s species barrier can be made. We show that the CER assay 
correctly predicts known prion species barriers of laboratory mice and, as an 
example, show some preliminary results suggesting that bobcats (Lynx rufus) may 
be susceptible to white-tailed deer (Odocoileus virginianus) chronic wasting 
disease agent. 
>>> show some preliminary results suggesting that bobcats (Lynx 
rufus) may be susceptible to white-tailed deer (Odocoileus virginianus) chronic 
wasting disease agent. 
AD.63: Susceptibility of domestic cats to chronic wasting disease 
Amy V.Nalls,1 Candace Mathiason,1 Davis Seelig,2 Susan Kraft,1 Kevin 
Carnes,1 Kelly Anderson,1 Jeanette Hayes-Klug1 and Edward A. Hoover1 
1Colorado State University; Fort Collins, CO USA; 2University of Minnesota; 
Saint Paul, MN USA 
Domestic and nondomestic cats have been shown to be susceptible to feline 
spongiform encephalopathy (FSE), almost certainly caused by consumption of 
bovine spongiform encephalopathy (BSE)-contaminated meat. Because domestic and 
free-ranging nondomestic felids scavenge cervid carcasses, including those in 
areas affected by chronic wasting disease (CWD), we evaluated the susceptibility 
of the domestic cat (Felis catus) to CWD infection experimentally. Cohorts of 5 
cats each were inoculated either intracerebrally (IC) or orally (PO) with 
CWD-infected deer brain. At 40 and 42 mo post-inoculation, two IC-inoculated 
cats developed signs consistent with prion disease, including a stilted gait, 
weight loss, anorexia, polydipsia, patterned motor behaviors, head and tail 
tremors, and ataxia, and progressed to terminal disease within 5 mo. Brains from 
these two cats were pooled and inoculated into cohorts of cats by IC, PO, and 
intraperitoneal and subcutaneous (IP/SC) routes. Upon subpassage, feline-adapted 
CWD (FelCWD) was transmitted to all IC-inoculated cats with a decreased 
incubation period of 23 to 27 mo. FelCWD was detected in the brains of all the 
symptomatic cats by western blotting and immunohistochemistry and abnormalities 
were seen in magnetic resonance imaging, including multifocal T2 fluid 
attenuated inversion recovery (FLAIR) signal hyper-intensities, ventricular size 
increases, prominent sulci, and white matter tract cavitation. Currently, 3 of 4 
IP/SQ and 2 of 4 PO inoculared cats have developed abnormal behavior patterns 
consistent with the early stage of feline CWD. These results demonstrate that 
CWD can be transmitted and adapted to the domestic cat, thus raising the issue 
of potential cervid-to- feline transmission in nature. 
www.landesbioscience.com 
PO-081: Chronic wasting disease in the cat— Similarities to feline 
spongiform encephalopathy (FSE) 
PO-081: Chronic wasting disease in the cat— Similarities to feline 
spongiform encephalopathy (FSE) 
Thursday, May 31, 2012 
CHRONIC WASTING DISEASE CWD PRION2012 Aerosol, Inhalation transmission, 
Scrapie, cats, species barrier, burial, and more 
Monday, August 8, 2011 
Susceptibility of Domestic Cats to CWD Infection 
Sunday, August 25, 2013 
Prion2013 Chronic Wasting Disease CWD risk factors, humans, domestic cats, 
blood, and mother to offspring transmission
Feline Spongiform Encephalopathy (FSE) FSE was first identified in the UK 
in 1990. Most cases have been reported in the UK, where the epidemic has been 
consistent with that of the BSE epidemic. Some other countries (e.g. Norway, 
Liechtenstein and France) have also reported cases. 
Most cases have been reported in domestic cats but there have also been 
cases in captive exotic cats (e.g. Cheetah, Lion, Asian leopard cat, Ocelot, 
Puma and Tiger). The disease is characterised by progressive nervous signs, 
including ataxia, hyper-reactivity and behavioural changes and is fatal. 
The chemical and biological properties of the infectious agent are 
identical to those of the BSE and vCJD agents. These findings support the 
hypothesis that the FSE epidemic resulted from the consumption of food 
contaminated with the BSE agent. 
The FSE epidemic has declined as a result of tight controls on the disposal 
of specified risk material and other animal by-products. 
References: Leggett, M.M. et al.(1990) A spongiform encephalopathy in a 
cat. Veterinary Record. 127. 586-588 
Synge, B.A. et al. (1991) Spongiform encephalopathy in a Scottish cat. 
Veterinary Record. 129. 320 
Wyatt, J. M. et al. (1991) Naturally occurring scrapie-like spongiform 
encephalopathy in five domestic cats. Veterinary Record. 129. 233. 
Gruffydd-Jones, T. J.et al.. (1991) Feline spongiform encephalopathy. J. 
Small Animal Practice. 33. 471-476. 
Pearson, G. R. et al. (1992) Feline spongiform encephalopathy: fibril and 
PrP studies. Veterinary Record. 131. 307-310. 
Willoughby, K. et al. (1992) Spongiform encephalopathy in a captive puma 
(Felis concolor). Veterinary Record. 131. 431-434. 
Fraser, H. et al. (1994) Transmission of feline spongiform encephalopathy 
to mice. Veterinary Record 134. 449. 
Bratberg, B. et al. (1995) Feline spongiform encephalopathy in a cat in 
Norway. Veterinary Record 136. 444 
Baron, T. et al. (1997) Spongiform encephalopathy in an imported cheetah in 
France. Veterinary Record 141. 270-271 
Zanusso, G et al. (1998) Simultaneous occurrence of spongiform 
encephalopathy in a man and his cat in Italy. Lancet, V352, N9134, OCT 3, Pp 
1116-1117.
Ryder, S.J. et al. (2001) Inconsistent detection of PrP in extraneural 
tissues of cats with feline spongiform encephalopathy. Veterinary Record 146. 
437-441
Kelly, D.F. et al. (2005) Neuropathological findings in cats with 
clinically suspect but histologically unconfirmed feline spongiform 
encephalopathy. Veterinary Record 156. 472-477. 
3 further cheetah cases have occured, plus 1 lion, plus all the primates, 
and 20 additional house cats. Nothing has been published on any of these UK 
cases either. One supposes the problem here with publishing is that many 
unpublished cases were _born_ long after the feed "ban". Caught between a rock 
and a hard place: leaky ban or horizontal transmission (or both). 
”The occurrence of CWD must be viewed against the contest of the locations 
in which it occurred. It was an incidental and unwelcome complication of the 
respective wildlife research programmes. Despite it’s subsequent recognition as 
a new disease of cervids, therefore justifying direct investigation, no specific 
research funding was forthcoming. The USDA veiwed it as a wildlife problem and 
consequently not their province!” page 26. 
O.05: Transmission of prions to primates after extended silent incubation 
periods: Implications for BSE and scrapie risk assessment in human populations 
Emmanuel Comoy, Jacqueline Mikol, Valerie Durand, Sophie Luccantoni, 
Evelyne Correia, Nathalie Lescoutra, Capucine Dehen, and Jean-Philippe Deslys 
Atomic Energy Commission; Fontenay-aux-Roses, France 
Prion diseases (PD) are the unique neurodegenerative proteinopathies 
reputed to be transmissible under field conditions since decades. The 
transmission of Bovine Spongiform Encephalopathy (BSE) to humans evidenced that 
an animal PD might be zoonotic under appropriate conditions. Contrarily, in the 
absence of obvious (epidemiological or experimental) elements supporting a 
transmission or genetic predispositions, PD, like the other proteinopathies, are 
reputed to occur spontaneously (atpical animal prion strains, sporadic CJD 
summing 80% of human prion cases). Non-human primate models provided the first 
evidences supporting the transmissibiity of human prion strains and the zoonotic 
potential of BSE. Among them, cynomolgus macaques brought major information for 
BSE risk assessment for human health (Chen, 2014), according to their 
phylogenetic proximity to humans and extended lifetime. We used this model to 
assess the zoonotic potential of other animal PD from bovine, ovine and cervid 
origins even after very long silent incubation periods. 
*** We recently observed the direct transmission of a natural classical 
scrapie isolate to macaque after a 10-year silent incubation period, 
***with features similar to some reported for human cases of sporadic CJD, 
albeit requiring fourfold long incubation than BSE. Scrapie, as recently evoked 
in humanized mice (Cassard, 2014), 
***is the third potentially zoonotic PD (with BSE and L-type BSE), 
***thus questioning the origin of human sporadic cases. We will present an 
updated panorama of our different transmission studies and discuss the 
implications of such extended incubation periods on risk assessment of animal PD 
for human health. 
=============== 
***thus questioning the origin of human sporadic cases*** 
=============== 
========================================== 
***our findings suggest that possible transmission risk of H-type BSE to 
sheep and human. Bioassay will be required to determine whether the PMCA 
products are infectious to these animals. 
========================================== 
PRION 2015 CONFERENCE FT. COLLINS CWD RISK FACTORS TO HUMANS 
*** LATE-BREAKING ABSTRACTS PRION 2015 CONFERENCE *** 
O18 
Zoonotic Potential of CWD Prions 
Liuting Qing1, Ignazio Cali1,2, Jue Yuan1, Shenghai Huang3, Diane Kofskey1, 
Pierluigi Gambetti1, Wenquan Zou1, Qingzhong Kong1 1Case Western Reserve 
University, Cleveland, Ohio, USA, 2Second University of Naples, Naples, Italy, 
3Encore Health Resources, Houston, Texas, USA 
*** These results indicate that the CWD prion has the potential to infect 
human CNS and peripheral lymphoid tissues and that there might be asymptomatic 
human carriers of CWD infection. 
================== 
***These results indicate that the CWD prion has the potential to infect 
human CNS and peripheral lymphoid tissues and that there might be asymptomatic 
human carriers of CWD infection.*** 
================== 
P.105: RT-QuIC models trans-species prion transmission 
Kristen Davenport, Davin Henderson, Candace Mathiason, and Edward Hoover 
Prion Research Center; Colorado State University; Fort Collins, CO USA 
Conversely, FSE maintained sufficient BSE characteristics to more 
efficiently convert bovine rPrP than feline rPrP. Additionally, human rPrP was 
competent for conversion by CWD and fCWD. 
***This insinuates that, at the level of protein:protein interactions, the 
barrier preventing transmission of CWD to humans is less robust than previously 
estimated. 
================ 
***This insinuates that, at the level of protein:protein interactions, the 
barrier preventing transmission of CWD to humans is less robust than previously 
estimated.*** 
================ 
*** PRICE OF CWD TSE PRION POKER GOES UP 2014 *** 
Transmissible Spongiform Encephalopathy TSE PRION update January 2, 2014 
*** chronic wasting disease, there was no absolute barrier to conversion of 
the human prion protein. 
*** Furthermore, the form of human PrPres produced in this in vitro assay 
when seeded with CWD, resembles that found in the most common human prion 
disease, namely sCJD of the MM1 subtype. 
*** These results would seem to suggest that CWD does indeed have zoonotic 
potential, at least as judged by the compatibility of CWD prions and their human 
PrPC target. Furthermore, extrapolation from this simple in vitro assay suggests 
that if zoonotic CWD occurred, it would most likely effect those of the PRNP 
codon 129-MM genotype and that the PrPres type would be similar to that found in 
the most common subtype of sCJD (MM1).*** 
*** The potential impact of prion diseases on human health was greatly 
magnified by the recognition that interspecies transfer of BSE to humans by beef 
ingestion resulted in vCJD. While changes in animal feed constituents and 
slaughter practices appear to have curtailed vCJD, there is concern that CWD of 
free-ranging deer and elk in the U.S. might also cross the species barrier. 
Thus, consuming venison could be a source of human prion disease. Whether BSE 
and CWD represent interspecies scrapie transfer or are newly arisen prion 
diseases is unknown. Therefore, the possibility of transmission of prion disease 
through other food animals cannot be ruled out. There is evidence that vCJD can 
be transmitted through blood transfusion. There is likely a pool of unknown size 
of asymptomatic individuals infected with vCJD, and there may be asymptomatic 
individuals infected with the CWD equivalent. These circumstances represent a 
potential threat to blood, blood products, and plasma supplies. 
now, let’s see what the authors said about this casual link, personal 
communications years ago. see where it is stated NO STRONG evidence. so, does 
this mean there IS casual evidence ???? “Our conclusion stating that we found no 
strong evidence of CWD transmission to humans” 
From: TSS (216-119-163-189.ipset45.wt.net) 
Subject: CWD aka MAD DEER/ELK TO HUMANS ??? 
Date: September 30, 2002 at 7:06 am PST 
From: "Belay, Ermias" 
To: Cc: "Race, Richard (NIH)" ; ; "Belay, Ermias" 
Sent: Monday, September 30, 2002 9:22 AM 
Subject: RE: TO CDC AND NIH - PUB MED- 3 MORE DEATHS - CWD - YOUNG HUNTERS 
Dear Sir/Madam, 
In the Archives of Neurology you quoted (the abstract of which was attached 
to your email), we did not say CWD in humans will present like variant CJD. That 
assumption would be wrong. I encourage you to read the whole article and call me 
if you have questions or need more clarification (phone: 404-639-3091). Also, we 
do not claim that "no-one has ever been infected with prion disease from eating 
venison." Our conclusion stating that we found no strong evidence of CWD 
transmission to humans in the article you quoted or in any other forum is 
limited to the patients we investigated. 
Ermias Belay, M.D. Centers for Disease Control and Prevention 
-----Original Message----- 
From: Sent: Sunday, September 29, 2002 10:15 AM 
To: rr26k@nih.gov; rrace@niaid.nih.gov; ebb8@CDC.GOV 
Subject: TO CDC AND NIH - PUB MED- 3 MORE DEATHS - CWD - YOUNG HUNTERS 
Sunday, November 10, 2002 6:26 PM ......snip........end..............TSS 
Thursday, April 03, 2008 
A prion disease of cervids: Chronic wasting disease 2008 1: Vet Res. 2008 
Apr 3;39(4):41 A prion disease of cervids: Chronic wasting disease Sigurdson CJ. 
snip... 
*** twenty-seven CJD patients who regularly consumed venison were reported 
to the Surveillance Center***, 
snip... full text ; 
CJD is so rare in people under age 30, one case in a billion (leaving out 
medical mishaps), that four cases under 30 is "very high," says Colorado 
neurologist Bosque. "Then, if you add these other two from Wisconsin [cases in 
the newspaper], six cases of CJD in people associated with venison is very, very 
high." Only now, with Mary Riley, there are at least seven, and possibly eight, 
with Steve, her dining companion. "It's not critical mass that matters," 
however, Belay says. "One case would do it for me." The chance that two people 
who know each other would both contact CJD, like the two Wisconsin sportsmen, is 
so unlikely, experts say, it would happen only once in 140 years. 
Given the incubation period for TSEs in humans, it may require another 
generation to write the final chapter on CWD in Wisconsin. "Does chronic wasting 
disease pass into humans? We'll be able to answer that in 2022," says Race. 
Meanwhile, the state has become part of an immense experiment. 
I urge everyone to watch this video closely...terry
*** you can see video here and interview with Jeff's Mom, and scientist 
telling you to test everything and potential risk factors for humans *** 
Envt.07: 
Pathological Prion Protein (PrPTSE) in Skeletal Muscles of Farmed and Free 
Ranging White-Tailed Deer Infected with Chronic Wasting Disease 
***The presence and seeding activity of PrPTSE in skeletal muscle from 
CWD-infected cervids suggests prevention of such tissue in the human diet as a 
precautionary measure for food safety, pending on further clarification of 
whether CWD may be transmissible to humans. 
Prions in Skeletal Muscles of Deer with Chronic Wasting Disease Rachel C. 
Angers1,*, Shawn R. Browning1,*,†, Tanya S. Seward2, Christina J. Sigurdson4,‡, 
Michael W. Miller5, Edward A. Hoover4, Glenn C. Telling1,2,3,§ snip...
Abstract The emergence of chronic wasting disease (CWD) in deer and elk in 
an increasingly wide geographic area, as well as the interspecies transmission 
of bovine spongiform encephalopathy to humans in the form of variant Creutzfeldt 
Jakob disease, have raised concerns about the zoonotic potential of CWD. Because 
meat consumption is the most likely means of exposure, it is important to 
determine whether skeletal muscle of diseased cervids contains prion 
infectivity. Here bioassays in transgenic mice expressing cervid prion protein 
revealed the presence of infectious prions in skeletal muscles of CWD-infected 
deer, demonstrating that humans consuming or handling meat from CWD-infected 
deer are at risk to prion exposure. 
***********CJD REPORT 1994 increased risk for consumption of veal and 
venison and lamb*********** 
CREUTZFELDT JAKOB DISEASE SURVEILLANCE IN THE UNITED KINGDOM THIRD ANNUAL 
REPORT AUGUST 1994 
Consumption of venison and veal was much less widespread among both cases 
and controls. For both of these meats there was evidence of a trend with 
increasing frequency of consumption being associated with increasing risk of 
CJD. (not nvCJD, but sporadic CJD...tss) 
These associations were largely unchanged when attention was restricted to 
pairs with data obtained from relatives. ... 
Table 9 presents the results of an analysis of these data. 
There is STRONG evidence of an association between ‘’regular’’ veal eating 
and risk of CJD (p = .0.01). 
Individuals reported to eat veal on average at least once a year appear to 
be at 13 TIMES THE RISK of individuals who have never eaten veal. 
There is, however, a very wide confidence interval around this estimate. 
There is no strong evidence that eating veal less than once per year is 
associated with increased risk of CJD (p = 0.51). 
The association between venison eating and risk of CJD shows similar 
pattern, with regular venison eating associated with a 9 FOLD INCREASE IN RISK 
OF CJD (p = 0.04). 
There is some evidence that risk of CJD INCREASES WITH INCREASING FREQUENCY 
OF LAMB EATING (p = 0.02). 
The evidence for such an association between beef eating and CJD is weaker 
(p = 0.14). When only controls for whom a relative was interviewed are included, 
this evidence becomes a little STRONGER (p = 0.08). 
snip... 
It was found that when veal was included in the model with another 
exposure, the association between veal and CJD remained statistically 
significant (p = < 0.05 for all exposures), while the other exposures ceased 
to be statistically significant (p = > 0.05). 
snip... 
In conclusion, an analysis of dietary histories revealed statistical 
associations between various meats/animal products and INCREASED RISK OF CJD. 
When some account was taken of possible confounding, the association between 
VEAL EATING AND RISK OF CJD EMERGED AS THE STRONGEST OF THESE ASSOCIATIONS 
STATISTICALLY. ... 
snip... 
In the study in the USA, a range of foodstuffs were associated with an 
increased risk of CJD, including liver consumption which was associated with an 
apparent SIX-FOLD INCREASE IN THE RISK OF CJD. By comparing the data from 3 
studies in relation to this particular dietary factor, the risk of liver 
consumption became non-significant with an odds ratio of 1.2 (PERSONAL 
COMMUNICATION, PROFESSOR A. HOFMAN. ERASMUS UNIVERSITY, ROTTERDAM). (???...TSS) 
snip...see full report ; 
CJD9/10022 
October 1994 
Mr R.N. Elmhirst Chairman British Deer Farmers Association Holly Lodge 
Spencers Lane BerksWell Coventry CV7 7BZ 
Dear Mr Elmhirst, 
CREUTZFELDT-JAKOB DISEASE (CJD) SURVEILLANCE UNIT REPORT 
Thank you for your recent letter concerning the publication of the third 
annual report from the CJD Surveillance Unit. I am sorry that you are 
dissatisfied with the way in which this report was published. 
The Surveillance Unit is a completely independant outside body and the 
Department of Health is committed to publishing their reports as soon as they 
become available. In the circumstances it is not the practice to circulate the 
report for comment since the findings of the report would not be amended. In 
future we can ensure that the British Deer Farmers Association receives a copy 
of the report in advance of publication. 
The Chief Medical Officer has undertaken to keep the public fully informed 
of the results of any research in respect of CJD. This report was entirely the 
work of the unit and was produced completely independantly of the the 
Department. 
The statistical results reqarding the consumption of venison was put into 
perspective in the body of the report and was not mentioned at all in the press 
release. Media attention regarding this report was low key but gave a realistic 
presentation of the statistical findings of the Unit. This approach to 
publication was successful in that consumption of venison was highlighted only 
once by the media ie. in the News at one television proqramme. 
I believe that a further statement about the report, or indeed statistical 
links between CJD and consumption of venison, would increase, and quite possibly 
give damaging credence, to the whole issue. From the low key media reports of 
which I am aware it seems unlikely that venison consumption will suffer 
adversely, if at all. 
http://web.archive.org/web/20030511010117/http://www.bseinquiry.gov.uk/files/yb/1994/10/00003001.pdf 
*** These results would seem to suggest that CWD does indeed have zoonotic 
potential, at least as judged by the compatibility of CWD prions and their human 
PrPC target. Furthermore, extrapolation from this simple in vitro assay suggests 
that if zoonotic CWD occurred, it would most likely effect those of the PRNP 
codon 129-MM genotype and that the PrPres type would be similar to that found in 
the most common subtype of sCJD (MM1).*** 
***This information will have a scientific impact since it is the first 
study that demonstrates the transmission of scrapie to a non-human primate with 
a close genetic relationship to humans. This information is especially useful to 
regulatory officials and those involved with risk assessment of the potential 
transmission of animal prion diseases to humans. 
***This observation strengthens the questioning of the harmlessness of 
scrapie to humans, at a time when protective measures for human and animal 
health are being dismantled and reduced as c-BSE is considered controlled and 
being eradicated. Our results underscore the importance of precautionary and 
protective measures and the necessity for long-term experimental transmission 
studies to assess the zoonotic potential of other animal prion strains. 
Thursday, December 03, 2015 
Missouri MDC reports CWD found in Franklin County 
Saturday, September 05, 2015 
Missouri Captive Cervid Industry, CWD TSE Prion, and Procrastinating for 
Money, while mad deer and elk disease silently spreads
Tuesday, June 16, 2015 
Missouri MDC changes deer hunting regs to help slow CWD 
Wednesday, March 11, 2015 
MDC reports 11 new cases of Chronic Wasting Disease CWD in Missouri deer 
Monday, January 26, 2015 
Missouri MDC reports two new cases of CWD found in Adair and Macon counties 
Tuesday, December 09, 2014 
Missouri MDC reports one new case of CWD, found in Adair County
Friday, October 17, 2014 
Missouri Final action on Orders of Rule making Breeders and Big Game 
Hunting Preserves 
Thursday, September 11, 2014 
Missouri Nixon's Veto Stands Overide Fails on Agriculture Legislation 
How they voted: attempt to override veto of ag bill fails in the House 
Thursday, May 01, 2014 
Missouri DNR CWD prevention and captive cervid farming Update 
Tuesday, March 26, 2013 
CWD Missouri remains confined to Linn-Macon-County Core Area with four new 
cases 
Wednesday, January 23, 2013 
Missouri sixth case CWD documented northwest Macon County 
Tuesday, January 24, 2012 
CWD found in two free-ranging deer from Macon County Missouri 
Friday, February 26, 2010 
Chronic wasting disease found in Missouri deer 
Sunday, March 25, 2012 
Three more cases of CWD found in free-ranging deer in Macon County 
From: Terry S. Singeltary Sr. 
Sent: Thursday, March 29, 2012 6:26 PM 
To: warhovert@missouri.edu 
Cc: abbottjm@missouri.edu ; waltermr@missouri.edu ; 
John.McLaughlin@missouri.edu ; connerek@missouri.edu ; contact@dnr.mo.gov ; 
Shelly.Witt@mda.mo.gov ; Animal.Health@mda.mo.gov ; acfa@mda.mo.gov ; 
animalid@mda.mo.gov ; Linda.Hickam@mda.mo.gov 
Subject: re-Missouri officials seek states' advice on chronic wasting 
disease in deer 
Thursday, May 31, 2012 
Missouri MDC staff will provide information on five recently found cases of 
CWD in free-ranging deer in northwest Macon County June 2, 2012 
Wednesday, September 05, 2012 
Missouri MDC seeks hunters’ help when processing harvested deer and 
preventing CWD 
Thursday, December 20, 2012 
MISSOURI Initial CWD sampling test results available online from MDC so far 
one adult buck has tested positive for the disease 
Friday, October 21, 2011 
Chronic Wasting Disease Found in Captive Deer Missouri 
The Missouri Department of Agriculture discovers the state's first case of 
CWD in a captive white-tailed deer.
Friday, February 26, 2010 
Chronic wasting disease found in Missouri deer February 25, 2010 
Chronic Wasting Disease Found in Captive Deer
The Missouri Departments of Agriculture, Conservation and Health and Senior 
Services and the U.S. Department of Agriculture announced today that a captive 
white-tailed deer in Linn County, Missouri has tested positive for Chronic 
Wasting Disease (CWD). CWD is a neurological disease found in deer, elk and 
moose.
"There is no evidence that CWD poses a risk to domestic animals or humans," 
said State Veterinarian Dr. Taylor Woods. "We have protocols in place to quickly 
and effectively handle these situations."
The animal that tested positive for CWD was a white-tailed deer inspected 
as part of the State's CWD surveillance and testing program. Preliminary tests 
were conducted by the USDA National Veterinary Services Laboratory in Ames, 
Iowa.
Upon receiving the confirmed CWD positive, Missouri's departments of 
Agriculture, Conservation and Health and Senior Services initiated their CWD 
Contingency Plan. The plan was developed in 2002 by the Cervid Health Committee, 
a task force comprised of veterinarians, animal health officers and conservation 
officers from USDA, MDA, MDC and DHSS working together to mitigate challenges 
associated with CWD.
CWD is transmitted by live animal to animal contact or soil to animal 
contact. The disease was first recognized in 1967 in captive mule deer in the 
Colorado Division of Wildlife captive wildlife research facility in Fort 
Collins, Colorado. CWD has been documented in deer and/or elk in Colorado, 
Illinois, Kansas, Michigan, Minnesota, Montana, Nebraska, New Mexico, New York, 
Oklahoma, South Dakota, Utah, Virginia, West Virginia, Wisconsin, and the 
Canadian Provinces of Alberta and Saskatchewan. There has been no evidence that 
the disease can be transmitted to humans.
"Missouri's proactive steps to put a testing protocol in place and create a 
contingency plan years ago is proving beneficial. We are in a solid position to 
follow pre-established steps to ensure Missouri's valuable whitetail deer 
resource remains healthy and strong," said Jason Sumners Missouri's Deer 
Biologist.
For more information regarding CWD, please contact Dr. Taylor Woods at 
(573) 751-3377.
Friday, September 20, 2013 
*** Missouri State records show gaps in oversight of captive deer farms, 
ranches ***
Friday, August 14, 2015 
*** Susceptibility of cattle to the agent of chronic wasting disease from 
elk after intracranial inoculation ***
Friday, February 05, 2016 
Report of the Committee on Wildlife Diseases FY2015 CWD TSE PRION 
Detections in Farmed Cervids and Wild 
Saturday, February 6, 2016 
*** Secretary's Advisory Committee on Animal Health; Meeting [Docket No. 
APHIS-2016-0007] Singeltary Submission 
Terry S. Singeltary Sr.



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