Subject:
BOVINE SPONGIFORM ENCEPHALOPATHY BSE TSE PRION UNITED STATE OF AMERICA UPDATE
JULY 2016
Current Monthly Test Results
APHIS reports ongoing surveillance test totals monthly.
Beginning in Fiscal Year 2016, the BSE ongoing surveillance program will sample approximately 25,000 animals each year. Under the program, USDA will continue to collect samples from a variety of sites and from the cattle populations where the disease is most likely to be detected.
Beginning in Fiscal Year 2016, the BSE ongoing surveillance program will sample approximately 25,000 animals each year. Under the program, USDA will continue to collect samples from a variety of sites and from the cattle populations where the disease is most likely to be detected.
| Month | Number of Tests |
|---|---|
June 2016
|
1,876 |
| May 2016 | 2,329 |
| April 2016 | 1,973 |
| March 2016 | 2,564 |
February 2016
|
2,901 |
| January 2016 |
3,095
|
December 2015
|
2,102
|
| November 2015 | 1,891 |
| October 2015 | 775 |
Fiscal Year 2007-2015 Test
Results
For Fiscal Years 2007-2015, the BSE ongoing surveillance
program had a target of testing approximately 40,000 animals per year.
OIE Surveillance Points: design prevalence of 1 case per 100,000 U.S. adult cattle and 95% confidence; 300,000 OIE points over 7 years, or 42,857 OIE points on average per year are required.
BSurvE Surveillance Points: design prevalence of 1 case per 1,000,000 U.S. adult cattle and 95% confidence; 3,000,000 points over 7 years, or 428,571 BSurvE points on average per year are required.
Samples Tested, OIE Points, and BSurvE Points by Fiscal Year
OIE Surveillance Points: design prevalence of 1 case per 100,000 U.S. adult cattle and 95% confidence; 300,000 OIE points over 7 years, or 42,857 OIE points on average per year are required.
BSurvE Surveillance Points: design prevalence of 1 case per 1,000,000 U.S. adult cattle and 95% confidence; 3,000,000 points over 7 years, or 428,571 BSurvE points on average per year are required.
Samples Tested, OIE Points, and BSurvE Points by Fiscal Year
Fiscal Year
|
Number of Valid Tests
|
OIE Points
|
BSurvE Points
|
|---|---|---|---|
FY 2015
|
40,902 | 592,353 |
1,414,630
|
FY 2014
|
41,291
|
678,622
|
1,642,452 |
FY 2013
|
43,173
|
1,048,554
|
2,505,042
|
FY 2012
|
42,202
|
1,066,637
|
2,523,447
|
FY 2011
|
40,482
|
997,360
|
2,344,436
|
FY 2010
|
44,301
|
948,593
|
2,233,643
|
FY 2009
|
44,217
|
1,036,849
|
2,442,400
|
FY 2008
|
43,145
|
1,121,624
|
2,677,665
|
FY 2007*
|
43,336
|
1,487,215
|
3,621,117
|
* FY2007 - first complete year of BSE Ongoing Surveillance | |||
BSE Ongoing Surveillance Program Cumulative Totals
- Valid Tests From September 1, 2006 to June 28, 2016: 402,555
- OIE Points From September 1, 2006 to June 28, 2016: 9,381,365
- BSurvE Points From September 1, 2006 to June 28, 2016: 22,373,783
APHIS 91-55-082
ADT and Reducing Response Time
• 2006: Cow with BSE
– 10 years old, no ID
– Not linked with location, time frame
USDA-APHIS National Veterinary Accreditation Program – DNA analysis
unsuccessful
– Took several weeks to investigate 37 farms
– No definitive source
– Incomplete data links
Jul y 2014 Center for Food Security and Public Health ADT and Reducing
Response Time (cont’d)
• 2012: Cow with BSE – Sample collected at rendering facility
– ICVIs issued by AVs
li t d ID b USDA-APHIS National Veterinary Accreditation Program li s t e d
ID num b ers, location, point in time
– Found offspring, birth cohorts within days
– Complete data links
July 2014 Center for
In 2015, the OIE determined that atypical BSE occurred spontaneously at a
low rate in all cattle populations and would be excluded for BSE risk.
USDA Announces Preliminary Concurrence with World Animal Health
Organization Risk Designations for Bovine Spongiform Encephalopathy in 16
Countries Published: Dec 4, 2015 Print December 4, 2015 -- The United States
Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS)
is preliminarily concurring with the World Organization for Animal Health’s
(OIE) bovine spongiform encephalopathy (BSE) risk designations for 16 countries.
The OIE recognizes these regions as being of negligible risk for BSE. APHIS
reviewed the information supporting the OIE’s risk designations for these
regions and agrees with the OIE designations.
The 16 countries are: Bulgaria, Cyprus, Czech Republic, Estonia, France,
India, Korea (Republic of), Hungary, Latvia, Liechtenstein, Luxembourg, Malta,
Portugal, Romania, Slovakia, and Switzerland. The OIE recommendations regarding
each of the above countries can be viewed online.
APHIS considers all countries of the world to fall into in one of three BSE
risk categories: negligible risk, controlled risk, or undetermined risk. Any
region that is not classified by APHIS as presenting either negligible risk or
controlled risk for BSE is considered to present an undetermined risk.
Under the regulations, APHIS may classify a region for BSE in one of two
ways. One way is for countries that have not received a risk classification from
the World Organization for Animal Health (OIE) to request classification by
APHIS. The other way is for APHIS to concur with the classification given to a
country by the OIE.
This notice is available for review online. APHIS will consider all
comments received on or before February 2, 2016. After reviewing any comments we
receive, we will announce our final determination regarding the BSE
classification of these countries in the Federal Register.
#
USDA is an equal opportunity provider and employer. To file a complaint of
discrimination, write: USDA, Office of the Assistant Secretary for Civil Rights,
Office of Adjudication, 1400 Independence Ave., SW, Washington, DC 20250-9410 or
call (866) 632-9992 (Toll-free Customer Service), (800) 877-8339 (Local or
Federal relay), (866) 377-8642 (Relay voice users).
BSE Cases Identified in the United States
There have been 4 cases of BSE identified in the United States. The
following information provides descriptions of these four cases: 2012 -
California collapsed On April 24, 2012, the USDA confirmed a BSE case in a dairy
cow in California. This cow was tested as part of the USDA targeted BSE
surveillance at rendering facilities in the United States. The cow was 10 years
and 7 months old and was classified as having the L-type BSE strain.
For more information, see the USDA/APHIS notice, the SDA/APHIS Final
Report[PDF – 179 KB] and the FDA Final Feed Investigation Summary.
2006 - Alabama collapsed On March 15, 2006, the USDA announced the
confirmation of BSE in a cow in Alabama. The case was identified in a
non-ambulatory (downer) cow on a farm in Alabama. The animal was euthanized by a
local veterinarian and buried on the farm. The age of the cow was estimated by
examination of the dentition as 10 years old.
It had no ear tags or distinctive marks; the herd of origin could not be
identified despite an intense investigation (see Alabama BSE Investigation,
Final Epidemiology Report, May 2006[PDF - 105KB]).
In August 2008, several ARS investigators reported that a rare, genetic
abnormality that may persist within the cattle population "is considered to have
caused" BSE in this atypical (H-type) BSE animal from Alabama. (See
Identification of a Heritable Polymorphism in Bovine PRNP Associated with
Genetic Transmissible Spongiform Encephalopathy: Evidence of Heritable BSE. Also
see BSE Case Associated with Prion Protein Gene Mutation.)
2005 - Texas collapsed On June 24, 2005, the USDA announced receipt of
final results from The Veterinary Laboratories Agency in Weybridge, England,
confirming BSE in a cow that had conflicting test results in 2004. This cow was
from Texas, died at approximately 12 years of age, and represented the first
endemic case of BSE in the United States. (see Texas BSE Investigation, Final
Epidemiology Report, August 2005[PDF - 82KB]) 2003 - Washington State collapsed
On December 23, 2003, the U.S. Department of Agriculture (USDA) announced a
presumptive diagnosis of the first known case of BSE in the United States. It
was in an adult Holstein cow from Washington State. This diagnosis was confirmed
by an international reference laboratory in Weybridge, England, on December 25.
Trace-back based on an ear-tag identification number and subsequent genetic
testing confirmed that the BSE-infected cow was imported into the United States
from Canada in August 2001.
Because the animal was non-ambulatory (a "downer cow") at slaughter, brain
tissue samples were taken by USDA’s Animal and Plant Health Inspection Service
as part of its targeted surveillance for BSE. However the animal’s condition was
attributed to complications from calving. After the animal was examined by a
USDA Food Safety and Inspection Service (FSIS) veterinary medical officer both
before and after slaughter, the carcass was released for use as food for human
consumption. During slaughter, the tissues considered to be at high risk for the
transmission of the BSE agent were removed.
On December 24, 2003, FSIS recalled beef from cattle slaughtered in the
same plant on the same day as the BSE positive cow. (see Bovine Spongiform
Encephalopathy in a Dairy Cow—Washington State, 2003(http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5253a2.htm).)
Preliminary Investigation Suggests BSE-Infected Cow in Washington State Was
Likely Imported from Canada
On December 23, 2003, the U.S. Department of Agriculture (USDA) announced a
presumptive diagnosis of bovine spongiform encephalopathy (BSE, or "mad cow"
disease) in an adult Holstein cow from Washington State. Samples were taken from
the cow on December 9 as part of USDA's BSE surveillance program. The BSE
diagnosis was made on December 22 and 23 by histopathology and
immunohistochemical testing at the National Veterinary Services Laboratory,
Ames, Iowa. The diagnosis was confirmed by an international reference laboratory
in Weybridge, England, on December 25. Preliminary trace-back based on an
ear-tag identification number suggests that the BSE-infected cow was imported
into the United States from Canada in August 2001.
USDA, in close cooperation with Canadian agricultural authorities, has
launched an epidemiologic investigation to determine the source of the disease.
Beef from the slaughtered cow had been processed for human consumption. On
December 23, 2003, the Food Safety and Inspection Service (FSIS), USDA announced
the recall of all beef from cattle slaughtered on December 9 at the involved
slaughter plant.
Strong evidence indicates that BSE has been transmitted to humans primarily
in the United Kingdom, causing a variant form of Creutzfeldt-Jakob disease
(vCJD)(http://www.cdc.gov/prions/vcjd/about.html).
In the United Kingdom, where over 1 million cattle may have been infected with
BSE, a substantial species barrier appears to protect humans from widespread
illness. As of December 1, 2003, a total of 153 vCJD cases had been reported
worldwide; of these, 143 cases had occurred in the United Kingdom. The risk to
human health from BSE in the United States is extremely low.
CDC monitors the trends and current incidence of CJD in the United States
by analyzing death certificate information from U.S. multiple cause-of-death
data compiled by the National Center for Health Statistics. With the support of
the Council of State and Territorial Epidemiologists, CDC conducts follow-up
review of clinical and neuropathology records of CJD decedents younger than 55
years of age. In addition, during 1996-1997, in collaboration with the American
Association of Neuropathologists (AANP), CDC established the National Prion
Disease Pathology Surveillance Center at Case Western Reserve University in
Cleveland, Ohio. This pathology center provides free, state-of-the-art
diagnostic services to U.S. physicians. It also helps to monitor the possible
occurrence of emerging forms of prion diseases, such as vCJD, in the United
States. For more information about the center visit its website at:
USDA About BSE FDA Bovine Spongiform Encephalopathy CDC Prion Diseases(http://www.cdc.gov/prions/index.html)
NIH NINDS Creutzfeldt-Jakob Disease Information Page For more information about
BSE in the United States, see the Animal and Plant Health Inspection Service,
USDA BSE site.
Related Links Prion Diseases(http://www.cdc.gov/prions/index.html)
Chronic Wasting Disease (CWD)(http://www.cdc.gov/prions/cwd/index.html)
Creutzfeldt-Jakob Disease (CJD)(http://www.cdc.gov/prions/cjd/index.html)
Variant Creutzfeldt-Jakob Disease (vCJD)(http://www.cdc.gov/prions/vcjd/index.html)
File Formats Help: How do I view different file formats (PDF, DOC, PPT, MPEG) on
this site? Adobe PDF file Microsoft PowerPoint file Microsoft Word file
Microsoft Excel file Audio/Video file Apple Quicktime file RealPlayer file Text
file Zip Archive file SAS file ePub file RIS file Page last reviewed: February
10, 2015 Page last updated: February 10, 2015 Content source: Centers for
Disease Control and Prevention National Center for Emerging and Zoonotic
Infectious Diseases (NCEZID) Division of High-Consequence Pathogens and
Pathology (DHCPP)
Comment from Terry Singeltary Sr.
The is a Comment on the Animal and Plant Health Inspection Service (APHIS)
Notice: Agency Information Collection Activities; Proposals, Submissions, and
Approvals: Bovine Spongiform Encephalopathy; Importation of Animals and Animal
Products
For related information, Open Docket Folder
--------------------------------------------------------------------------------
Show agency attachment(s) AttachmentsView All (0)
--------------------------------------------------------------------------------
Comment View document:Docket No. APHIS-2014-0107 Bovine Spongiform
Encephalopathy; Importation of Animals and Animal Products Singeltary Submission
;
I believe that there is more risk to the world from Transmissible
Spongiform Encephalopathy TSE prion aka mad cow type disease now, coming from
the United States and all of North America, than there is risk coming to the USA
and North America, from other Countries. I am NOT saying I dont think there is
any risk for the BSE type TSE prion coming from other Countries, I am just
saying that in 2015, why is the APHIS/USDA/FSIS/FDA still ignoring these present
mad cow risk factors in North America like they are not here?
North America has more strains of TSE prion disease, in more species
(excluding zoo animals in the early BSE days, and excluding the Feline TSE and
or Canine TSE, because they dont look, and yes, there has been documented
evidence and scientific studies, and DEFRA Hound study, that shows the canine
spongiform encephalopathy is very possible, if it has not already happened, just
not documented), then any other Country in the world. Mink TME, Deer Elk cervid
CWD (multiple strains), cBSE cattle, atypical L-type BSE cattle, atypical H-type
BSE cattle, atyical HG type BSE cow (the only cow documented in the world to
date with this strain), typical sheep goat Scrapie (multiple strains), and the
atypical Nor-98 Scrapie, which has been linked to sporadic CJD, Nor-98 atypical
Scrapie has spread from coast to coast. sporadic CJD on the rise, with different
strains mounting, victims becoming younger, with the latest nvCJD human mad cow
case being documented in Texas again, this case, NOT LINKED TO EUROPEAN TRAVEL
CDC.
typical BSE can propagate as nvCJD and or sporadic CJD (Collinge et al),
and sporadic CJD has now been linked to atypical BSE, Scrapie and atypical
Scrapie, and scientist are very concerned with CWD TSE prion in the Cervid
populations. in my opinion, the BSE MRR policy, which overtook the BSE GBR risk
assessments for each country, and then made BSE confirmed countries legal to
trade mad cow disease, which was all brought forth AFTER that fateful day
December 23, 2003, when the USA lost its gold card i.e. BSE FREE status, thats
the day it all started. once the BSE MRR policy was shoved down every countries
throat by USDA inc and the OIE, then the legal trading of Scrapie was validated
to be a legal trading commodity, also shoved through by the USDA inc and the
OIE, the world then lost 30 years of attempted eradication of the BSE TSE prion
disease typical and atypical strains, and the BSE TSE Prion aka mad cow type
disease was thus made a legal trading commodity, like it or not. its all about
money now folks, trade, to hell with human health with a slow incubating
disease, that is 100% fatal once clinical, and forget the fact of exposure,
sub-clinical infection, and friendly fire there from i.e. iatrogenic TSE prion
disease, the pass it forward mode of the TSE PRION aka mad cow type disease. its
all going to be sporadic CJD or sporadic ffi, or sporadic gss, or now the
infamous VPSPr. ...problem solved $$$
the USDA/APHIS/FSIS/FDA triple mad cow BSE firewall, well, that was nothing
but ink on paper.
for this very reason I believe the BSE MRR policy is a total failure, and
that this policy should be immediately withdrawn, and set back in place the BSE
GBR Risk Assessments, with the BSE GBR risk assessments set up to monitor all
TSE PRION disease in all species of animals, and that the BSE GBR risk
assessments be made stronger than before.
lets start with the recent notice that beef from Ireland will be coming to
America.
Ireland confirmed around 1655 cases of mad cow disease. with the highest
year confirming about 333 cases in 2002, with numbers of BSE confirmed cases
dropping from that point on, to a documentation of 1 confirmed case in 2013, to
date. a drastic decrease in the feeding of cows to cows i.e. the ruminant mad
cow feed ban, and the enforcement of that ban, has drastically reduced the
number of BSE cases in Europe, minus a few BABs or BARBs. a far cry from the
USDA FDA triple BSE firewall, which was nothing more than ink on paper, where in
2007, in one week recall alone, some 10 MILLION POUNDS OF BANNED POTENTIAL MAD
COW FEED WENT OUT INTO COMMERCE IN THE USA. this is 10 years post feed ban. in
my honest opinion, due to the blatant cover up of BSE TSE prion aka mad cow
disease in the USA, we still have no clue as to the true number of cases of BSE
mad cow disease in the USA or North America as a whole. ...just saying.
Number of reported cases of bovine spongiform encephalopathy (BSE) in
farmed cattle worldwide* (excluding the United Kingdom)
Country/Year
snip...please see attached pdf file, with references of breaches in the USA
triple BSE mad cow firewalls, and recent science on the TSE prion disease.
...TSS No documents available. AttachmentsView All (1) Docket No.
APHIS-2014-0107 Bovine Spongiform Encephalopathy; Importation of Animals and
Animal Products Singeltary Submission View Attachment:
Terry S. Singeltary Sr. submission ;
Docket No. APHIS-2014-0107 Bovine Spongiform Encephalopathy; Importation of
Animals and Animal Products Singeltary Submission
Posted: 12/30/2014ID: APHIS-2014-0107-0001
Notice: Environmental Impact Statements; Availability, etc.: Animal Carcass
Management
Document ID: APHIS-2013-0044-0001 Docket ID: APHIS-2013-0044 Comment ID:
APHIS-2013-0044-0002
(APHIS) Notice: Agency Information Collection Activities; Proposals,
Submissions, and Approvals: Chronic Wasting Disease Herd Certification Program
Agency Information Collection Activities; Proposals, Submissions, and Approvals:
Chronic Wasting Disease Herd Certification Program (Document ID
APHIS-2011-0032-0001)
Owens, Julie
From: Terry S. Singeltary Sr. [flounder9@verizon.net]
Sent: Monday, July 24, 2006 1:09 PM
To: FSIS RegulationsComments
Subject: [Docket No. FSIS-2006-0011] FSIS Harvard Risk Assessment of Bovine
Spongiform Encephalopathy (BSE) Page 1 of 98
FSIS, USDA, REPLY TO SINGELTARY
From:Terry S. Singeltary Sr. [flounder9@verizon.net]
Sent:Thursday, September 08, 2005 6:17 PM
To:fsis.regulationscomments@fsis.usda.gov
Subject: [Docket No. 03-025IFA] FSIS Prohibition of the Use of Specified
Risk Materials for Human Food and Requirements for the Disposition of
Non-Ambulatory Disabled Cattle
APHIS-2006-0118-0096 CWD
DOCKET-- 03D-0186 -- FDA Issues Draft Guidance on Use of Material From Deer
and Elk in Animal Feed; Availability Date: Fri, 16 May 2003 11:47:37 0500 EMC 1
Terry S. Singeltary Sr. Vol #: 1
PLEASE SEE FULL TEXT SUBMISSION ;
*** 2001 Terry S. Singeltary Sr. comment submission ***
when USDA inc. contracts out for someone to pick up suspect BSE mad cow
cattle heads for testing, you would hope they would be from suspect BSE mad cow
cattle. NOT WITH THE USDA INC., they hired someone to pick up HEALTHY CATTLE
THEY KNEW DID NOT HAVE MAD COW DISEASE BSE TO BE TESTED FOR MAD COW DISEASE BSE.
Subject: USDA OIG SEMIANNUAL REPORT TO CONGRESS FY 2007 1st Half (bogus BSE
sampling FROM HEALTHY USDA CATTLE)
Date: June 21, 2007 at 2:49 pm PST
Owner and Corporation Plead Guilty to Defrauding Bovine Spongiform
Encephalopathy (BSE) Surveillance Program
An Arizona meat processing company and its owner pled guilty in February
2007 to charges of theft of Government funds, mail fraud, and wire fraud. The
owner and his company defrauded the BSE Surveillance Program when they falsified
BSE Surveillance Data Collection Forms and then submitted payment requests to
USDA for the services. In addition to the targeted sample population (those
cattle that were more than 30 months old or had other risk factors for BSE), the
owner submitted to USDA, or caused to be submitted, BSE obex (brain stem)
samples from healthy USDA-inspected cattle. As a result, the owner fraudulently
received approximately $390,000. Sentencing is scheduled for May 2007.
snip...
Topics that will be covered in ongoing or planned reviews under Goal 1
include:
soundness of BSE maintenance sampling (APHIS),
implementation of Performance-Based Inspection System enhancements for
specified risk material (SRM) violations and improved inspection controls over
SRMs (FSIS and APHIS),
snip...
The findings and recommendations from these efforts will be covered in
future semiannual reports as the relevant audits and investigations are
completed.
4 USDA OIG SEMIANNUAL REPORT TO CONGRESS FY 2007 1st Half
Tuesday, July 14, 2009
U.S. Emergency Bovine Spongiform Encephalopathy Response Plan Summary and
BSE Red Book Date: February 14, 2000 at 8:56 am PST
WHERE did we go wrong $$$
From: Terry S. Singeltary Sr. (216-119-138-129.ipset18.wt.net)
Subject: Emergency Operations...BSE Red Book Date: March 13, 2000 at 1:30
pm PST
BSE Red Book 2.1-35
7.0 Emergency Operations
The section below would be implemented only after a first case of BSE is
confirmed in the United States.
7.1 READEO Activation
Prelimanary Notification
The director of NVSL is responsible for immediately notifying the APHIS,
Veterinary Services (VS) deputy administrator when tests suggest a presumptive
diagnosis of BSE. Once NVSL has made a presumptive diagnosis of BSE, APHIS and
FSIS field activities will also be initiated. APHIS will receive notification
(either confirming or not confirming NVSL's diagnosis) from the United Kingdom
anywhere between 24 and 96 hours
IT TOOK 7 MONTHS AND AN ACT OF CONGRESS TO GET THIS 2ND TEXAS BSE MAD COW
CONFIRMED !
now, someone please tell me why I should expect anything different with
Chronic Wasting Disease CWD TSE Prion testing in Texas $$$
the good old boy system is still alive and well in Texas i.e. shoot,
shovel, and shut the hell up i.e. SSS POLICY...
Tuesday, April 24, 2012
MAD COW DISEASE USA 4TH CASE DOCUMENTED ATYPICAL BSE CALIFORNIA
Wednesday, April 25, 2012
4th MAD COW DISEASE U.S.A. CALIFORNIA ATYPICAL L-TYPE BSE 2012
Qualitative Analysis of BSE Risk Factors in the United States February 13,
2000 at 3:37 pm PST (BSE red book)
http://bseusa.blogspot.com/2008/08/qualitative-analysis-of-bse-risk.html
Sunday, May 27, 2012
Sunday, May 27, 2012
CANADA PLANS TO IMPRISON ANYONE SPEAKING ABOUT MAD COW or ANY OTHER DISEASE
OUTBREAK, CENSORSHIP IS A TERRIBLE THING
Thursday, April 26, 2012
FDA Statement on USDA Announcement of Positive BSE Test Result For
Immediate Release: April 26, 2012
2016
Wednesday, May 25, 2016
USDA APHIS National Scrapie TSE Prion Eradication Program April 2016
Monthly Report Prion 2016 Tokyo Update
Friday, April 22, 2016
Texas Scrapie Confirmed in a Hartley County Sheep where CWD was detected in
a Mule Deer
Sunday, July 10, 2016
Primary transmission of CWD versus scrapie prions from small ruminants to
ovine and cervid PrP transgenic mice
http://chronic-wasting-disease.blogspot.com/2016/07/primary-transmission-of-cwd-versus.html
Tuesday, July 12, 2016
Tuesday, July 12, 2016
Chronic Wasting Disease CWD, Scrapie, Bovine Spongiform Encephalopathy BSE,
TSE, Prion Zoonosis Science History
see history of NIH may destroy human brain collection
Monday, May 09, 2016
A comparison of classical and H-type bovine spongiform encephalopathy
associated with E211K prion protein polymorphism in wild type and EK211 cattle
following intracranial inoculation
*** Docket No. APHIS-2007-0127 Scrapie in Sheep and Goats Terry Singeltary
Sr. Submission ***
Docket No. APHIS-2007-0127 Scrapie in Sheep and Goats
SUMMARY: We are reopening the comment period for our proposed rule that
would revise completely the scrapie regulations, which concern the risk groups
and categories established for individual animals and for flocks, the use of
genetic testing as a means of assigning risk levels to animals, movement
restrictions for animals found to be genetically less susceptible or resistant
to scrapie, and recordkeeping requirements. This action will allow interested
persons additional time to prepare and submit comments.DATES: The comment period
for the proposed rule published on September 10, 2015 (80 FR 54660-54692) is
reopened. We will consider all comments that we receive on or before December 9,
2015. ...
Comment from Terry Singeltary This is a Comment on the Animal and Plant
Health Inspection Service (APHIS) Proposed Rule: Scrapie in Sheep and
Goats
For related information, Open Docket Folder Docket folder icon
--------------------------------------------------------------------------------
Show agency attachment(s) AttachmentsView All (0)
--------------------------------------------------------------------------------
Comment View document:Indeed, much science has changed about the Scrapie
TSE prion, including more science linking Scrapie to humans. sadly, politics,
industry, and trade, have not changed, and those usually trump sound science, as
is the case with all Transmissible Spongiform Encephalopathy TSE Prion disease
in livestock producing animals and the OIE. we can look no further at the legal
trading of the Scrapie TSE prion both typical and atypical of all strains, and
CWD all stains. With as much science of old, and now more new science to back
this up, Scrapie of all types i.e. atypical and typical, BSE all strains, and
CWD all strains, should be regulated in trade as BSE TSE PRION. In fact, I urge
APHIS et al and the OIE, and all trading partners to take heed to the latest
science on the TSE prion disease, all of them, and seriously reconsider the
blatant disregards for human and animal health, all in the name of trade, with
the continued relaxing of TSE Prion trade regulations through the 'NEGLIGIBLE
BSE RISK' PROGRAM, which was set up to fail in the first place. If the world
does not go back to the 'BSE RISK ASSESSMENTS', enhance, and or change that
assessment process to include all TSE prion disease, i.e. 'TSE RISK ASSESSMENT',
if we do not do this and if we continue this farce with OIE and the USDA et al,
and the 'NEGLIGIBLE BSE RISK' PROGRAM, we will never eradicate the TSE prion aka
mad cow type disease, they will continue to mutate and spread among species of
human and animal origin, and they will continue to kill. ...
please see ;
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 longe 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***
===============
***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.
please see file attachment for full submission and recent science and my
deep concerns on the TSE Prion disease... No documents available.
AttachmentsView All (1) scrapie-usa-blogspot-com View Attachment:
Saturday, July 16, 2016
Importation of Sheep, Goats, and Certain Other Ruminants [Docket No.
APHIS-2009-0095]RIN 0579-AD10
WITH great disgust and concern, I report to you that the OIE, USDA, APHIS,
are working to further legalize the trading of Transmissible Spongiform
Encephalopathy TSE Pion disease around the globe.
THIS is absolutely insane. it’s USDA INC.
USDA BSE TSE PRION SURVEILLANCE, FEED, TESTING, SRM FIREWALLS...LMAO!
THE USDA FDA TRIPLE MAD COW DISEASE FIREWALL, WERE NOTHING MORE THAN INK ON
PAPER !
infamous august 4, 1997 BSE TSE prion mad cow feed ban, part of usda fda et
al TRIPLE MAD COW FIREWALL, 10 YEARS AFTER ;
10,000,000+ LBS. of PROHIBITED BANNED MAD COW FEED I.E. BLOOD LACED MBM IN
COMMERCE USA 2007
Date: March 21, 2007 at 2:27 pm PST RECALLS AND FIELD CORRECTIONS:
VETERINARY MEDICINES -- CLASS II PRODUCT Bulk cattle feed made with recalled
Darling's 85% Blood Meal, Flash Dried, Recall # V-024-2007 CODE Cattle feed
delivered between 01/12/2007 and 01/26/2007 RECALLING FIRM/MANUFACTURER
Pfeiffer, Arno, Inc, Greenbush, WI. by conversation on February 5, 2007.
Firm initiated recall is ongoing. REASON Blood meal used to make cattle
feed was recalled because it was cross- contaminated with prohibited bovine meat
and bone meal that had been manufactured on common equipment and labeling did
not bear cautionary BSE statement.
VOLUME OF PRODUCT IN COMMERCE 42,090 lbs. DISTRIBUTION WI
___________________________________
PRODUCT Custom dairy premix products: MNM ALL PURPOSE Pellet, HILLSIDE/CDL
Prot- Buffer Meal, LEE, M.-CLOSE UP PX Pellet, HIGH DESERT/ GHC LACT Meal,
TATARKA, M CUST PROT Meal, SUNRIDGE/CDL PROTEIN Blend, LOURENZO, K PVM DAIRY
Meal, DOUBLE B DAIRY/GHC LAC Mineral, WEST PIONT/GHC CLOSEUP Mineral, WEST
POINT/GHC LACT Meal, JENKS, J/COMPASS PROTEIN Meal, COPPINI - 8# SPECIAL DAIRY
Mix, GULICK, L-LACT Meal (Bulk), TRIPLE J - PROTEIN/LACTATION, ROCK CREEK/GHC
MILK Mineral, BETTENCOURT/GHC S.SIDE MK-MN, BETTENCOURT #1/GHC MILK MINR,
V&C DAIRY/GHC LACT Meal, VEENSTRA, F/GHC LACT Meal, SMUTNY, A- BYPASS ML
W/SMARTA, Recall # V-025-2007 CODE The firm does not utilize a code - only
shipping documentation with commodity and weights identified. RECALLING
FIRM/MANUFACTURER Rangen, Inc, Buhl, ID, by letters on February 13 and 14, 2007.
Firm initiated recall is complete. REASON Products manufactured from bulk
feed containing blood meal that was cross contaminated with prohibited meat and
bone meal and the labeling did not bear cautionary BSE statement.
VOLUME OF PRODUCT IN COMMERCE 9,997,976 lbs. DISTRIBUTION ID and NV
END OF ENFORCEMENT REPORT FOR MARCH 21, 2007
16 years post mad cow feed ban August 1997
2013
Sunday, December 15, 2013
FDA PART 589 -- SUBSTANCES PROHIBITED FROM USE IN ANIMAL FOOD OR FEED
VIOLATIONS OFFICIAL ACTION INDICATED OIA UPDATE DECEMBER 2013 UPDATE
17 years post mad cow feed ban August 1997
Tuesday, December 23, 2014
FDA PART 589 -- SUBSTANCES PROHIBITED FROM USE IN ANIMAL FOOD OR FEED
VIOLATIONS OFFICIAL ACTION INDICATED OAI UPDATE DECEMBER 2014 BSE TSE PRION
*** Monday, October 26, 2015 ***
*** FDA PART 589 -- SUBSTANCES PROHIBITED FROM USE IN ANIMAL FOOD OR FEED
VIOLATIONS OFFICIAL ACTION INDICATED OIA UPDATE October 2015 ***
Thursday, July 24, 2014
*** Protocol for further laboratory investigations into the distribution of
infectivity of Atypical BSE SCIENTIFIC REPORT OF EFSA New protocol for Atypical
BSE investigations
*** Singeltary reply ; Molecular, Biochemical and Genetic Characteristics
of BSE in Canada Singeltary reply ;
Saturday, January 31, 2015
European red deer (Cervus elaphus elaphus) are susceptible to Bovine
Spongiform Encephalopathy BSE by Oral Alimentary route
I strenuously once again urge the FDA and its industry constituents, to
make it MANDATORY that all ruminant feed be banned to all ruminants, and this
should include all cervids as soon as possible for the following reasons...
======
In the USA, under the Food and Drug Administrations BSE Feed Regulation (21
CFR 589.2000) most material (exceptions include milk, tallow, and gelatin) from
deer and elk is prohibited for use in feed for ruminant animals. With regards to
feed for non-ruminant animals, under FDA law, CWD positive deer may not be used
for any animal feed or feed ingredients. For elk and deer considered at high
risk for CWD, the FDA recommends that these animals do not enter the animal feed
system.
***However, this recommendation is guidance and not a requirement by law.
======
31 Jan 2015 at 20:14 GMT
*** Ruminant feed ban for cervids in the United States? ***
31 Jan 2015 at 20:14 GMT
see Singeltary comment ;
Docket No. FDA-2003-D-0432 (formerly 03D-0186) Use of Material from Deer
and Elk in Animal Feed Singeltary Submission
see BSE TSE SRM breaches being served up to humans as appetizers...
Monday, June 20, 2016
Specified Risk Materials SRMs BSE TSE Prion Program
Discussion: The C, L and H type BSE cases in Canada exhibit molecular
characteristics similar to those described for classical and atypical BSE cases
from Europe and Japan. This supports the theory that the importation of BSE
contaminated feedstuff is the source of C-type BSE in Canada.
*** It also suggests a similar cause or source for atypical BSE in these
countries.
Maximizing profits is all that is going on now, thanks to the OIE BSE MRR
policy, the legal trading of all strains of TSE prion disease globally. ...Terry
S. Singeltary Sr.
atypical BSE spontaneous sporadic ???
Saturday, May 26, 2012
Are USDA assurances on mad cow case 'gross oversimplification'?
SNIP...
*** What irks many scientists is the USDA’s April 25 statement that the
rare disease is “not generally associated with an animal consuming infected
feed.”
*** The USDA’s conclusion is a “gross oversimplification,” said Dr. Paul
Brown, one of the world’s experts on this type of disease who retired recently
from the National Institutes of Health.
*** "(The agency) has no foundation on which to base that statement.”
*** “We can’t say it’s not feed related,” agreed Dr. Linda Detwiler, an
official with the USDA during the Clinton Administration now at Mississippi
State.
*** In the May 1 email to me, USDA’s Cole backed off a bit. “No one knows
the origins of atypical cases of BSE,” she said
*** The argument about feed is critical because if feed is the cause, not a
spontaneous mutation, the California cow could be part of a larger outbreak.
SNIP...
Evidence That Transmissible Mink Encephalopathy Results from Feeding
Infected Cattle
Over the next 8-10 weeks, approximately 40% of all the adult mink on the
farm died from TME.
snip...
The rancher was a ''dead stock'' feeder using mostly (>95%) downer or
dead dairy cattle...
In Confidence - Perceptions of unconventional slow virus diseases of
animals in the USA - APRIL-MAY 1989 - G A H Wells
3. Prof. A. Robertson gave a brief account of BSE. The US approach was to
accord it a very low profile indeed. Dr. A Thiermann showed the picture in the
''Independent'' with cattle being incinerated and thought this was a fanatical
incident to be avoided in the US at all costs. ...
”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.
*** Spraker suggested an interesting explanation for the occurrence of CWD.
The deer pens at the Foot Hills Campus were built some 30-40 years ago by a Dr.
Bob Davis. At or abut that time, allegedly, some scrapie work was conducted at
this site. When deer were introduced to the pens they occupied ground that had
previously been occupied by sheep.
Atypical BSE (BASE) Transmitted from Asymptomatic Aging Cattle to a
Primate
Emmanuel E. Comoy1*, Cristina Casalone2, Nathalie Lescoutra-Etchegaray1,
Gianluigi Zanusso3, Sophie Freire1, Dominique Marcé1, Frédéric Auvré1,
Marie-Magdeleine Ruchoux1, Sergio Ferrari3, Salvatore Monaco3, Nicole Salès4,
Maria Caramelli2, Philippe Leboulch1,5, Paul Brown1, Corinne I. Lasmézas4,
Jean-Philippe Deslys1
1 Institute of Emerging Diseases and Innovative Therapies, CEA,
Fontenay-aux-Roses, France, 2 Istituto Zooprofilattico Sperimentale del
Piemonte, Turin, Italy, 3 Policlinico G.B. Rossi, Verona, Italy, 4 Scripps
Florida, Jupiter, Florida, United States of America, 5 Genetics Division,
Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts,
United States of America
Abstract Top
Background
Human variant Creutzfeldt-Jakob Disease (vCJD) results from foodborne
transmission of prions from slaughtered cattle with classical Bovine Spongiform
Encephalopathy (cBSE). Atypical forms of BSE, which remain mostly asymptomatic
in aging cattle, were recently identified at slaughterhouses throughout Europe
and North America, raising a question about human susceptibility to these new
prion strains.
Methodology/Principal Findings
Brain homogenates from cattle with classical BSE and atypical (BASE)
infections were inoculated intracerebrally into cynomolgus monkeys (Macacca
fascicularis), a non-human primate model previously demonstrated to be
susceptible to the original strain of cBSE. The resulting diseases were compared
in terms of clinical signs, histology and biochemistry of the abnormal prion
protein (PrPres). The single monkey infected with BASE had a shorter survival,
and a different clinical evolution, histopathology, and prion protein (PrPres)
pattern than was observed for either classical BSE or vCJD-inoculated animals.
Also, the biochemical signature of PrPres in the BASE-inoculated animal was
found to have a higher proteinase K sensitivity of the octa-repeat region. We
found the same biochemical signature in three of four human patients with
sporadic CJD and an MM type 2 PrP genotype who lived in the same country as the
infected bovine.
Conclusion/Significance
Our results point to a possibly higher degree of pathogenicity of BASE than
classical BSE in primates and also raise a question about a possible link to one
uncommon subset of cases of apparently sporadic CJD. Thus, despite the waning
epidemic of classical BSE, the occurrence of atypical strains should temper the
urge to relax measures currently in place to protect public health from
accidental contamination by BSE-contaminated products.
Citation: Comoy EE, Casalone C, Lescoutra-Etchegaray N, Zanusso G, Freire
S, et al. (2008) Atypical BSE (BASE) Transmitted from Asymptomatic Aging Cattle
to a Primate. PLoS ONE 3(8): e3017. doi:10.1371/journal.pone.0003017
Editor: Neil Mabbott, University of Edinburgh, United Kingdom
Received: April 24, 2008; Accepted: August 1, 2008; Published: August 20,
2008
Copyright: © 2008 Comoy et al. This is an open-access article distributed
under the terms of the Creative Commons Attribution License, which permits
unrestricted use, distribution, and reproduction in any medium, provided the
original author and source are credited.
Funding: This work has been supported by the Network of Excellence
NeuroPrion.
Competing interests: CEA owns a patent covering the BSE diagnostic tests
commercialized by the company Bio-Rad.
* E-mail: emmanuel.comoy@cea.fr
atypical Bovine Amyloidotic Spongiform Encephalopathy Bovine Spongiform
Encephalopathy
Abstract
The amyloidotic form of bovine spongiform encephalopathy (BSE) termed BASE
is caused by a prion strain whose biological properties differ from those of
typical BSE, resulting in a clinically and pathologically distinct phenotype.
Whether peripheral tissues of BASE-affected cattle contain infectivity is
unknown. This is a critical issue since the BASE prion is readily transmissible
to a variety of hosts including primates, suggesting that humans may be
susceptible. We carried out bioassays in transgenic mice overexpressing bovine
PrP (Tgbov XV) and found infectivity in a variety of skeletal muscles from
cattle with natural and experimental BASE. Noteworthy, all BASE muscles used for
inoculation transmitted disease, although the attack rate differed between
experimental and natural cases (~70% versus ~10%, respectively). This difference
was likely related to different prion titers, possibly due to different stages
of disease in the two conditions, i.e. terminal stage in experimental BASE and
pre-symptomatic stage in natural BASE. The neuropathological phenotype and
PrPres type were consistent in all affected mice and matched those of Tgbov XV
mice infected with brain homogenate from natural BASE. The immunohistochemical
analysis of skeletal muscles from cattle with natural and experimental BASE
showed the presence of abnormal prion protein deposits within muscle fibers.
Conversely, Tgbov XV mice challenged with lymphoid tissue and kidney from
natural and experimental BASE did not develop disease. The novel information on
the neuromuscular tropism of the BASE strain, efficiently overcoming species
barriers, underlines the relevance of maintaining an active surveillance. In
2004 an atypical form of bovine spongiform encephalopathy (BSE) termed BASE or
BSE-L was identified in Italy through active surveillance [1] and subsequently
recognized in different European countries, North America, Canada and Japan
[1]–[6]. BASE affects relatively old cattle (all cases were older than 9 years)
and differs from BSE with regard to the neuropathological phenotype, the
biochemical profile of the disease-associated prion protein (PrPSc) and the
biological properties of the agent strain [1], [3], [7]. The neuropathological
hallmark of BASE is the presence of PrP amyloid plaques and the preferential
involvement of olfactory areas, hippocampus and thalamus with a relatively low
involvement of the brainstem, as opposed to classical BSE. The molecular
signature of BASE is a PrPSc type distinguished by a protease-resistant core
(PrPres) of lower molecular mass than BSE-PrPSc, with predominance of the
monoglycosylated protein band by western immunoblot. Intra-species transmission
revealed that the clinical picture of BASE differs substantially from that of
BSE, being characterized by mental dullness and amyotrophy rather than
hyper-reactivity and aggressiveness [8], [9]. As a consequence, the recognition
of BASE in vivo can be difficult and may represent a major challenge for passive
surveillance. ***Transmission studies to transgenic mice overexpressing bovine
PrP (Tgbov mice) showed that the BASE strain is more aggressive than the BSE
strain [10]. Furthermore, Tg mice overexpressing human PrP as well as non-human
primates are more susceptible to infection with BASE than with BSE [11]–[14].
Overall these data raise concern about the potential risk of transmission
of BASE to humans and it is urgent to determine the presence and distribution of
infectivity in peripheral tissues of BASE-affected cattle. To investigate this
issue, we inoculated Tgbov mice with different peripheral tissues from
experimentally and naturally BASE-affected cattle and found that various
skeletal muscles contained infectivity and PrP-immunoreactive deposits within
individual fibers.
snip...
The present data offer novel information on the tropism of the BASE agent
and highlight relevant public health issues. While the transmission barrier for
classical BSE is high in most species, BASE prions are readily transmissible to
a variety of mammals including non-human primates [11]–[13], [35]. Accordingly,
the possibility of spreading of BASE prions through skeletal muscle to other
species should be taken into account and evaluated in risk analysis studies.
Monday, May 23, 2011
Atypical Prion Diseases in Humans and Animals 2011
Top Curr Chem (2011)
DOI: 10.1007/128_2011_161
# Springer-Verlag Berlin Heidelberg 2011
Michael A. Tranulis, Sylvie L. Benestad, Thierry Baron, and Hans
Kretzschmar
Abstract
Although prion diseases, such as Creutzfeldt-Jakob disease (CJD) in humans
and scrapie in sheep, have long been recognized, our understanding of their
epidemiology and pathogenesis is still in its early stages. Progress is hampered
by the lengthy incubation periods and the lack of effective ways of monitoring
and characterizing these agents. Protease-resistant conformers of the prion
protein (PrP), known as the "scrapie form" (PrPSc), are used as disease markers,
and for taxonomic purposes, in correlation with clinical, pathological, and
genetic data. In humans, prion diseases can arise sporadically (sCJD) or
genetically (gCJD and others), caused by mutations in the PrP-gene (PRNP), or as
a foodborne infection, with the agent of bovine spongiform encephalopathy (BSE)
causing variant CJD (vCJD). Person-to-person spread of human prion disease has
only been known to occur following cannibalism (kuru disease in Papua New
Guinea) or through medical or surgical treatment (iatrogenic CJD, iCJD). In
contrast, scrapie in small ruminants and chronic wasting disease (CWD) in
cervids behave as infectious diseases within these species. Recently, however,
so-called atypical forms of prion diseases have been discovered in sheep
(atypical/Nor98 scrapie) and in cattle, BSE-H and BSE-L. These maladies resemble
sporadic or genetic human prion diseases and might be their animal equivalents.
This hypothesis also raises the significant public health question of possible
epidemiological links between these diseases and their counterparts in
humans.
M.A. Tranulis (*)
Norwegian School of Veterinary Science, Oslo, Norway
e-mail: Michael.Tranulis@nvh.no
S.L. Benestad
Norwegian Veterinary Institute, Oslo, Norway
T. Baron
Agence Nationale de Se´curite´ Sanitaire, ANSES, Lyon, France
H. Kretzschmar
Ludwig-Maximilians University of Munich, Munich, Germany
Keywords Animal Atypical Atypical/Nor98 scrapie BSE-H BSE-L Human Prion
disease Prion strain Prion type
Wednesday, March 31, 2010
Atypical BSE in Cattle
To date the OIE/WAHO assumes that the human and animal health standards set
out in the BSE chapter for classical BSE (C-Type) applies to all forms of BSE
which include the H-type and L-type atypical forms. This assumption is
scientifically not completely justified and accumulating evidence suggests that
this may in fact not be the case. Molecular characterization and the spatial
distribution pattern of histopathologic lesions and immunohistochemistry (IHC)
signals are used to identify and characterize atypical BSE. Both the L-type and
H-type atypical cases display significant differences in the conformation and
spatial accumulation of the disease associated prion protein (PrPSc) in brains
of afflicted cattle. Transmission studies in bovine transgenic and wild type
mouse models support that the atypical BSE types might be unique strains because
they have different incubation times and lesion profiles when compared to C-type
BSE. When L-type BSE was inoculated into ovine transgenic mice and Syrian
hamster the resulting molecular fingerprint had changed, either in the first or
a subsequent passage, from L-type into C-type BSE.
In addition, non-human primates are specifically susceptible for atypical
BSE as demonstrated by an approximately 50% shortened incubation time for L-type
BSE as compared to C-type. Considering the current scientific information
available, it cannot be assumed that these different BSE types pose the same
human health risks as C-type BSE or that these risks are mitigated by the same
protective measures.
This study will contribute to a correct definition of specified risk
material (SRM) in atypical BSE. The incumbent of this position will develop new
and transfer existing, ultra-sensitive methods for the detection of atypical BSE
in tissue of experimentally infected cattle.
L-BSE, TME, AND SPORADIC CJD in North America
Moreover, transmission experiments to non-human primates suggest that some
TSE agents in addition to Classical BSE prions in cattle (namely L-type Atypical
BSE, Classical BSE in sheep, transmissible mink encephalopathy (TME) and chronic
wasting disease (CWD) agents) might have zoonotic potential.
snip...
Thursday, August 12, 2010
Seven main threats for the future linked to prions
First threat
The TSE road map defining the evolution of European policy for protection
against prion diseases is based on a certain numbers of hypotheses some of which
may turn out to be erroneous. In particular, a form of BSE (called atypical
Bovine Spongiform Encephalopathy), recently identified by systematic testing in
aged cattle without clinical signs, may be the origin of classical BSE and thus
potentially constitute a reservoir, which may be impossible to eradicate if a
sporadic origin is confirmed.
***Also, a link is suspected between atypical BSE and some apparently
sporadic cases of Creutzfeldt-Jakob disease in humans. These atypical BSE cases
constitute an unforeseen first threat that could sharply modify the European
approach to prion diseases.
Second threat
snip...
Transmissibility of BSE-L and Cattle-Adapted TME Prion Strain to Cynomolgus
Macaque
Transmissibility of BSE-L and Cattle-Adapted TME Prion Strain to Cynomolgus
Macaque
Emmanuel Comoy,1,† Valérie Durand,1 Evelyne Correia,1 Sophie Freire,1
Jürgen Richt,2 Justin Greenlee,3 Juan-Maria Torres,4 Paul Brown,1 Bob Hills5 and
Jean-Philippe Deslys1
1Atomic Energy Commission; Fontenay-aux-Roses, France; 2Kansas State
University; Manhattan, KS USA; 3USDA; Ames, IA USA; 4INIA; Madrid, Spain;
5Health Canada; Ottawa, ON Canada†Presenting author; Email:
emmanuel.comoy@cea.fr
The epidemiology of Transmissible mink encephalopathy (TME) indicates an
alimentary origin. Several inter-species transmission experiments have not
succeeded in establishing with certainty any natural reservoir of this prion
strain, although both ovine and bovine sources have been suspected. Cattle
exposed to TME develop a spongiform encephalopathy that is distinct from
classical Bovine Spongiform Encephalopathy (c-BSE).
Inoculation of c-BSE to cynomolgus macaque provided early evidence of a
possible risk to humans, and remains an important model to define the risk of
both primary (oral transmission from cattle to primate) and secondary
(intravenous intra-species transmission) exposures. We have also evaluated the
transmissibility of other cattle prion strains to macaques, including L- and H-
atypical forms of BSE, namely BSE-L and BSE-H, and cattle-adapted TME.
BSE-L induced a neurological disease distinct from c-BSE. Peripheral
exposures demonstrate the transmissibility of BSE-L by oral, intravenous, and
intra-cerebral routes, with incubation periods similar to c-BSE. Cattle-adapted
TME also induced a rapid disease in cynomolgus macaque. The clinical features,
lesion profile, and biochemical signature of the induced disease was similar to
the features observed in animals exposed to BSE-L, suggesting a link between the
two prion strains. Secondary transmissions to a common host (transgenic mouse
overexpressing bovine PrP) of cattle-TME and BSE-L before or after passage in
primates induced diseases with similar incubation periods: like the c-BSE
strain, these cattle strains maintained their distinctive features regardless of
the donor species and passages.
If the link between TME and BSE-L is confirmed, our results would suggest
that BSE-L in North America may have existed for decades, and highlight a
possible preferential transmission of animal prion strains to primates after
passage in cattle.
=====================end...tss====================
link url not available, please see PRION 2011 ;
Volume 13, Number 12–December 2007 Research
Phenotypic Similarity of Transmissible Mink Encephalopathy in Cattle and
L-type Bovine Spongiform Encephalopathy in a Mouse Model
Thierry Baron,* Anna Bencsik,* Anne-Gaëlle Biacabe,* Eric Morignat,*
andRichard A. Bessen†*Agence Française de Sécurité Sanitaire des Aliments–Lyon,
Lyon, France; and†Montana State University, Bozeman, Montana, USA
Abstract
Transmissible mink encepholapathy (TME) is a foodborne transmissible
spongiform encephalopathy (TSE) of ranch-raised mink; infection with a ruminant
TSE has been proposed as the cause, but the precise origin of TME is unknown. To
compare the phenotypes of each TSE, bovine-passaged TME isolate and 3 distinct
natural bovine spongiform encephalopathy (BSE) agents (typical BSE, H-type BSE,
and L-type BSE) were inoculated into an ovine transgenic mouse line (TgOvPrP4).
Transgenic mice were susceptible to infection with bovine-passaged TME, typical
BSE, and L-type BSE but not to H-type BSE. Based on survival periods, brain
lesions profiles, disease-associated prion protein brain distribution, and
biochemical properties of protease-resistant prion protein, typical BSE had a
distint phenotype in ovine transgenic mice compared to L-type BSE and bovine
TME.The similar phenotypic properties of L-type BSE and bovine TME in TgOvPrP4
mice suggest that L-type BSE is a much more likely candidate for the origin of
TME than is typical BSE.
snip...
Conclusion
These studies provide experimental evidence that the Stetsonville TME agent
is distinct from typical BSE but has phenotypic similarities to L-type BSE in
TgOvPrP4 mice. Our conclusion is that L-type BSE is a more likely candidate for
a bovine source of TME infection than typical BSE. In the scenario that a
ruminant TSE is the source for TME infection in mink, this would be a second
example of transmission of a TSE from ruminants to non-ruminants under natural
conditions or farming practices in addition to transmission of typical BSE to
humans, domestic cats, and exotic zoo animals(37). The potential importance of
this finding is relevant to L-type BSE, which based on experimental transmission
into humanized PrP transgenic mice and macaques, suggests that L-type BSE is
more pathogenic for humans than typical BSE (24,38).
Saturday, June 25, 2011
Transmissibility of BSE-L and Cattle-Adapted TME Prion Strain to Cynomolgus
Macaque
"BSE-L in North America may have existed for decades"
Thursday, April 26, 2012
Update from USDA Regarding a Detection of Bovine Spongiform Encephalopathy
(BSE) in the United States WASHINGTON bulletin at 04/26/2012 10:11 PM EDT
Saturday, August 4, 2012
Final Feed Investigation Summary - California BSE Case - July 2012
SUMMARY REPORT CALIFORNIA BOVINE SPONGIFORM ENCEPHALOPATHY CASE
INVESTIGATION JULY 2012
Summary Report BSE 2012
Executive Summary
Saturday, August 4, 2012
Update from APHIS Regarding Release of the Final Report on the BSE
Epidemiological Investigation
Information released on 2 February 2005 Summary of information requested
What statistics are available on cattle less than 30 months of age found to
have BSE?
Information released
VLA has recorded approximately 100 cases of BSE in cattle of 30 months of
age or under during the entire period of the BSE epidemic (1986 - 2005). The
figure is approximate as for 51 of these the age is only estimated. This is
because farmers did not have accurate documentation to confirm birth date. This
was not a requirement at the time.
We can confirm that of the 100 cases, 49 were under 30 months of age, of
these the youngest case was 20 months old.
PRION 2016 CONFERENCE TOKYO
Saturday, April 23, 2016
SCRAPIE WS-01: Prion diseases in animals and zoonotic potential 2016
Prion. 10:S15-S21. 2016 ISSN: 1933-6896 printl 1933-690X online
Taylor & Francis
Prion 2016 Animal Prion Disease Workshop Abstracts
WS-01: Prion diseases in animals and zoonotic potential
Juan Maria Torres a, Olivier Andreoletti b, J uan-Carlos Espinosa a.
Vincent Beringue c. Patricia Aguilar a,
Natalia Fernandez-Borges a. and Alba Marin-Moreno a
"Centro de Investigacion en Sanidad Animal ( CISA-INIA ). Valdeolmos,
Madrid. Spain; b UMR INRA -ENVT 1225 Interactions Holes Agents Pathogenes. ENVT.
Toulouse. France: "UR892. Virologie lmmunologie MolécuIaires, Jouy-en-Josas.
France
Dietary exposure to bovine spongiform encephalopathy (BSE) contaminated
bovine tissues is considered as the origin of variant Creutzfeldt Jakob (vCJD)
disease in human. To date, BSE agent is the only recognized zoonotic prion.
Despite the variety of Transmissible Spongiform Encephalopathy (TSE) agents that
have been circulating for centuries in farmed ruminants there is no apparent
epidemiological link between exposure to ruminant products and the occurrence of
other form of TSE in human like sporadic Creutzfeldt Jakob Disease (sCJD).
However, the zoonotic potential of the diversity of circulating TSE agents has
never been systematically assessed. The major issue in experimental assessment
of TSEs zoonotic potential lies in the modeling of the ‘species barrier‘, the
biological phenomenon that limits TSE agents’ propagation from a species to
another. In the last decade, mice genetically engineered to express normal forms
of the human prion protein has proved essential in studying human prions
pathogenesis and modeling the capacity of TSEs to cross the human species
barrier.
To assess the zoonotic potential of prions circulating in farmed ruminants,
we study their transmission ability in transgenic mice expressing human PrPC
(HuPrP-Tg). Two lines of mice expressing different forms of the human PrPC
(129Met or 129Val) are used to determine the role of the Met129Val dimorphism in
susceptibility/resistance to the different agents.
These transmission experiments confirm the ability of BSE prions to
propagate in 129M- HuPrP-Tg mice and demonstrate that Met129 homozygotes may be
susceptible to BSE in sheep or goat to a greater degree than the BSE agent in
cattle and that these agents can convey molecular properties and
neuropathological indistinguishable from vCJD. However homozygous 129V mice are
resistant to all tested BSE derived prions independently of the originating
species suggesting a higher transmission barrier for 129V-PrP variant.
Transmission data also revealed that several scrapie prions propagate in
HuPrP-Tg mice with efficiency comparable to that of cattle BSE. While the
efficiency of transmission at primary passage was low, subsequent passages
resulted in a highly virulent prion disease in both Met129 and Val129 mice.
Transmission of the different scrapie isolates in these mice leads to the
emergence of prion strain phenotypes that showed similar characteristics to
those displayed by MM1 or VV2 sCJD prion. These results demonstrate that scrapie
prions have a zoonotic potential and raise new questions about the possible link
between animal and human prions.
Research Project: TRANSMISSION, DIFFERENTIATION, AND PATHOBIOLOGY OF
TRANSMISSIBLE SPONGIFORM ENCEPHALOPATHIES
Title: Transmission of scrapie prions to primate after an extended silent
incubation period
Authors
item Comoy, Emmanuel - item Mikol, Jacqueline - item Luccantoni-Freire,
Sophie - item Correia, Evelyne - item Lescoutra-Etchegaray, Nathalie - item
Durand, Valérie - item Dehen, Capucine - item Andreoletti, Olivier - item
Casalone, Cristina - item Richt, Juergen item Greenlee, Justin item Baron,
Thierry - item Benestad, Sylvie - item Hills, Bob - item Brown, Paul - item
Deslys, Jean-Philippe -
Submitted to: Scientific Reports Publication Type: Peer Reviewed Journal
Publication Acceptance Date: May 28, 2015 Publication Date: June 30, 2015
Citation: Comoy, E.E., Mikol, J., Luccantoni-Freire, S., Correia, E.,
Lescoutra-Etchegaray, N., Durand, V., Dehen, C., Andreoletti, O., Casalone, C.,
Richt, J.A., Greenlee, J.J., Baron, T., Benestad, S., Brown, P., Deslys, J.
2015. Transmission of scrapie prions to primate after an extended silent
incubation period. Scientific Reports. 5:11573.
Interpretive Summary: The transmissible spongiform encephalopathies (also
called prion diseases) are fatal neurodegenerative diseases that affect animals
and humans. The agent of prion diseases is a misfolded form of the prion protein
that is resistant to breakdown by the host cells. Since all mammals express
prion protein on the surface of various cells such as neurons, all mammals are,
in theory, capable of replicating prion diseases. One example of a prion
disease, bovine spongiform encephalopathy (BSE; also called mad cow disease),
has been shown to infect cattle, sheep, exotic undulates, cats, non-human
primates, and humans when the new host is exposed to feeds or foods contaminated
with the disease agent. The purpose of this study was to test whether non-human
primates (cynomologous macaque) are susceptible to the agent of sheep scrapie.
After an incubation period of approximately 10 years a macaque developed
progressive clinical signs suggestive of neurologic disease. Upon postmortem
examination and microscopic examination of tissues, there was a widespread
distribution of lesions consistent with a transmissible spongiform
encephalopathy. 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. Technical Abstract:
Classical bovine spongiform encephalopathy (c-BSE) is an animal prion disease
that also causes variant Creutzfeldt-Jakob disease in humans. Over the past
decades, c-BSE's zoonotic potential has been the driving force in establishing
extensive protective measures for animal and human health.
*** In complement to the recent demonstration that humanized mice are
susceptible to scrapie, we report here the first observation of direct
transmission of a natural classical scrapie isolate to a macaque after a 10-year
incubation period. Neuropathologic examination revealed all of the features of a
prion disease: spongiform change, neuronal loss, and accumulation of PrPres
throughout the CNS.
*** 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.
2015
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.
==============
Tuesday, December 16, 2014
*** Evidence for zoonotic potential of ovine scrapie prions
Hervé Cassard,1, n1 Juan-Maria Torres,2, n1 Caroline Lacroux,1, Jean-Yves
Douet,1, Sylvie L. Benestad,3, Frédéric Lantier,4, Séverine Lugan,1, Isabelle
Lantier,4, Pierrette Costes,1, Naima Aron,1, Fabienne Reine,5, Laetitia
Herzog,5, Juan-Carlos Espinosa,2, Vincent Beringue5, & Olivier Andréoletti1,
Affiliations Contributions Corresponding author Journal name: Nature
Communications Volume: 5, Article number: 5821 DOI: doi:10.1038/ncomms6821
Received 07 August 2014 Accepted 10 November 2014 Published 16 December 2014
Article tools Citation Reprints Rights & permissions Article metrics
Abstract
Although Bovine Spongiform Encephalopathy (BSE) is the cause of variant
Creutzfeldt Jakob disease (vCJD) in humans, the zoonotic potential of scrapie
prions remains unknown. Mice genetically engineered to overexpress the human
prion protein (tgHu) have emerged as highly relevant models for gauging the
capacity of prions to transmit to humans. These models can propagate human
prions without any apparent transmission barrier and have been used used to
confirm the zoonotic ability of BSE. Here we show that a panel of sheep scrapie
prions transmit to several tgHu mice models with an efficiency comparable to
that of cattle BSE.
***The serial transmission of different scrapie isolates in these mice led
to the propagation of prions that are phenotypically identical to those causing
sporadic CJD (sCJD) in humans.
***These results demonstrate that scrapie prions have a zoonotic potential
and raise new questions about the possible link between animal and human prions.
Subject terms: Biological sciences• Medical research At a glance
see more here ;
why do we not want to do TSE transmission studies on chimpanzees $
5. A positive result from a chimpanzee challenged severly would likely
create alarm in some circles even if the result could not be interpreted for
man. I have a view that all these agents could be transmitted provided a large
enough dose by appropriate routes was given and the animals kept long enough.
Until the mechanisms of the species barrier are more clearly understood it might
be best to retain that hypothesis.
snip...
R. BRADLEY
Wednesday, February 16, 2011
IN CONFIDENCE
SCRAPIE TRANSMISSION TO CHIMPANZEES
IN CONFIDENCE
Sunday, December 12, 2010
EFSA reviews BSE/TSE infectivity in small ruminant tissues News Story 2
December 2010
Sunday, April 18, 2010
SCRAPIE AND ATYPICAL SCRAPIE TRANSMISSION STUDIES A REVIEW 2010
Thursday, December 23, 2010
Molecular Typing of Protease-Resistant Prion Protein in Transmissible
Spongiform Encephalopathies of Small Ruminants, France, 2002-2009
Volume 17, Number 1 January 2011
Thursday, November 18, 2010
Increased susceptibility of human-PrP transgenic mice to bovine spongiform
encephalopathy following passage in sheep
Monday, April 25, 2011
Experimental Oral Transmission of Atypical Scrapie to Sheep
Volume 17, Number 5-May 2011
Friday, February 11, 2011
Atypical/Nor98 Scrapie Infectivity in Sheep Peripheral Tissues
Thursday, March 29, 2012
atypical Nor-98 Scrapie has spread from coast to coast in the USA 2012
NIAA Annual Conference April 11-14, 2011San Antonio, Texas
Wednesday, April 4, 2012
20120402 - Breach of quarantine/Violation de la mise en quarantaine of an
ongoing Scrapie investigation
Michigan and California have had a high spike in Goat Scrapie cases,
compared to elsewhere ???
Tuesday, February 01, 2011
Sparse PrP-Sc accumulation in the placentas of goats with naturally
acquired scrapie
(Figure 6) including five goat cases in FY 2008 that originated from the
same herd in Michigan. This is highly unusual for goats, and I strenuously urge
that there should be an independent investigation into finding the common
denominator for these 5 goats in the same herd in Michigan with Scrapie. ...
Thursday, February 23, 2012
Atypical Scrapie NOR-98 confirmed Alberta Canada sheep January 2012
RESEARCH
Emerging Infectious Diseases • www.cdc.gov/eid • Vol. 17, No. 5, May 2011
Experimental Oral Transmission of Atypical Scrapie to Sheep
Marion M. Simmons, S. Jo Moore,1 Timm Konold, Lisa Thurston, Linda A.
Terry, Leigh Thorne, Richard Lockey, Chris Vickery, Stephen A.C. Hawkins,
Melanie J. Chaplin, and John Spiropoulos
To investigate the possibility of oral transmission of atypical scrapie in
sheep and determine the distribution of infectivity in the animals’ peripheral
tissues, we challenged neonatal lambs orally with atypical scrapie; they were
then killed at 12 or 24 months. Screening test results were negative for
disease-specifi c prion protein in all but 2 recipients; they had positive
results for examination of brain, but negative for peripheral tissues.
Infectivity of brain, distal ileum, and spleen from all animals was assessed in
mouse bioassays; positive results were obtained from tissues that had negative
results on screening. These fi ndings demonstrate that atypical scrapie can be
transmitted orally and indicate that it has the potential for natural
transmission and iatrogenic spread through animal feed. Detection of infectivity
in tissues negative by current surveillance methods indicates that diagnostic
sensitivity is suboptimal for atypical scrapie, and potentially infectious
material may be able to pass into the human food chain.
SNIP...
Although we do not have epidemiologic evidence that supports the effi cient
spread of disease in the fi eld, these data imply that disease is potentially
transmissible under fi eld situations and that spread through animal feed may be
possible if the current feed restrictions were to be relaxed. Additionally,
almost no data are available on the potential for atypical scrapie to transmit
to other food animal species, certainly by the oral route. However, work with
transgenic mice has demonstrated the potential susceptibility of pigs, with the
disturbing fi nding that the biochemical properties of the resulting PrPSc have
changed on transmission (40). The implications of this observation for
subsequent transmission and host target range are currently unknown.
How reassuring is this absence of detectable PrPSc from a public health
perspective? The bioassays performed in this study are not titrations, so the
infectious load of the positive gut tissues cannot be quantifi ed, although
infectivity has been shown unequivocally. No experimental data are currently
available on the zoonotic potential of atypical scrapie, either through
experimental challenge of humanized mice or any meaningful epidemiologic
correlation with human forms of TSE. However, the detection of infectivity in
the distal ileum of animals as young as 12 months, in which all the tissues
tested were negative for PrPSc by the currently available screening and confi
rmatory diagnostic tests, indicates that the diagnostic sensitivity of current
surveillance methods is suboptimal for detecting atypical scrapie and that
potentially infectious material may be able to pass into the human food chain
undetected.
Emerging Infectious Diseases • www.cdc.gov/eid • Vol. 17, No. 5, May 2011
1: J Infect Dis 1980 Aug;142(2):205-8
Oral transmission of kuru, Creutzfeldt-Jakob disease, and scrapie to
nonhuman primates.
Gibbs CJ Jr, Amyx HL, Bacote A, Masters CL, Gajdusek DC.
Kuru and Creutzfeldt-Jakob disease of humans and scrapie disease of sheep
and goats were transmitted to squirrel monkeys (Saimiri sciureus) that were
exposed to the infectious agents only by their nonforced consumption of known
infectious tissues. The asymptomatic incubation period in the one monkey exposed
to the virus of kuru was 36 months; that in the two monkeys exposed to the virus
of Creutzfeldt-Jakob disease was 23 and 27 months, respectively; and that in the
two monkeys exposed to the virus of scrapie was 25 and 32 months, respectively.
Careful physical examination of the buccal cavities of all of the monkeys failed
to reveal signs or oral lesions. One additional monkey similarly exposed to kuru
has remained asymptomatic during the 39 months that it has been under
observation.
snip...
The successful transmission of kuru, Creutzfeldt-Jakob disease, and scrapie
by natural feeding to squirrel monkeys that we have reported provides further
grounds for concern that scrapie-infected meat may occasionally give rise in
humans to Creutzfeldt-Jakob disease.
PMID: 6997404
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=6997404&dopt=Abstract
Recently the question has again been brought up as to whether scrapie is
transmissible to man. This has followed reports that the disease has been
transmitted to primates. One particularly lurid speculation (Gajdusek 1977)
conjectures that the agents of scrapie, kuru, Creutzfeldt-Jakob disease and
transmissible encephalopathy of mink are varieties of a single "virus". The U.S.
Department of Agriculture concluded that it could "no longer justify or permit
scrapie-blood line and scrapie-exposed sheep and goats to be processed for human
or animal food at slaughter or rendering plants" (ARC 84/77)" The problem is
emphasised by the finding that some strains of scrapie produce lesions identical
to the once which characterise the human dementias"
Whether true or not. the hypothesis that these agents might be
transmissible to man raises two considerations. First, the safety of laboratory
personnel requires prompt attention. Second, action such as the "scorched meat"
policy of USDA makes the solution of the acrapie problem urgent if the sheep
industry is not to suffer grievously.
snip...
76/10.12/4.6
Nature. 1972 Mar 10;236(5341):73-4.
Transmission of scrapie to the cynomolgus monkey (Macaca fascicularis).
Gibbs CJ Jr, Gajdusek DC.
Nature 236, 73 - 74 (10 March 1972); doi:10.1038/236073a0
Transmission of Scrapie to the Cynomolgus Monkey (Macaca
fascicularis)
C. J. GIBBS jun. & D. C. GAJDUSEK
National Institute of Neurological Diseases and Stroke, National Institutes
of Health, Bethesda, Maryland
SCRAPIE has been transmitted to the cynomolgus, or crab-eating, monkey
(Macaca fascicularis) with an incubation period of more than 5 yr from the time
of intracerebral inoculation of scrapie-infected mouse brain. The animal
developed a chronic central nervous system degeneration, with ataxia, tremor and
myoclonus with associated severe scrapie-like pathology of intensive astroglial
hypertrophy and proliferation, neuronal vacuolation and status spongiosus of
grey matter. The strain of scrapie virus used was the eighth passage in Swiss
mice (NIH) of a Compton strain of scrapie obtained as ninth intracerebral
passage of the agent in goat brain, from Dr R. L. Chandler (ARC, Compton,
Berkshire).
BSE, SCRAPIE, CWD, TSE, PRION, and the legal trading therefrom, thanks to
the USDA and OIE et al
Tuesday, May 31, 2016
Priority Interim Position Paper PROTECTING THE FOOD CHAIN FROM PRIONS
Perspectives
Tuesday, June 07, 2016
Comparison of two US sheep scrapie isolates supports identification as
separate strains
Research Project: TRANSMISSION, DIFFERENTIATION, AND PATHOBIOLOGY OF
TRANSMISSIBLE SPONGIFORM ENCEPHALOPATHIES
CHRONIC WASTING DISEASE TSE PRION
PRION 2016 TOKYO
Zoonotic Potential of CWD Prions: An Update
Ignazio Cali1, Liuting Qing1, Jue Yuan1, Shenghai Huang2, Diane Kofskey1,3,
Nicholas Maurer1, Debbie McKenzie4, Jiri Safar1,3,5, Wenquan Zou1,3,5,6,
Pierluigi Gambetti1, Qingzhong Kong1,5,6
1Department of Pathology, 3National Prion Disease Pathology Surveillance
Center, 5Department of Neurology, 6National Center for Regenerative Medicine,
Case Western Reserve University, Cleveland, OH 44106, USA.
4Department of Biological Sciences and Center for Prions and Protein
Folding Diseases, University of Alberta, Edmonton, Alberta, Canada,
2Encore Health Resources, 1331 Lamar St, Houston, TX 77010
Chronic wasting disease (CWD) is a widespread and highly transmissible
prion disease in free-ranging and captive cervid species in North America. The
zoonotic potential of CWD prions is a serious public health concern, but the
susceptibility of human CNS and peripheral organs to CWD prions remains largely
unresolved. We reported earlier that peripheral and CNS infections were detected
in transgenic mice expressing human PrP129M or PrP129V. Here we will present an
update on this project, including evidence for strain dependence and influence
of cervid PrP polymorphisms on CWD zoonosis as well as the characteristics of
experimental human CWD prions.
PRION 2016 TOKYO
In Conjunction with Asia Pacific Prion Symposium 2016
PRION 2016 Tokyo
Prion 2016
Prion 2016
Purchase options Price * Issue Purchase USD 198.00
Cervid to human prion transmission
Kong, Qingzhong
Case Western Reserve University, Cleveland, OH, United States
Abstract
Prion disease is transmissible and invariably fatal. Chronic wasting
disease (CWD) is the prion disease affecting deer, elk and moose, and it is a
widespread and expanding epidemic affecting 22 US States and 2 Canadian
provinces so far. CWD poses the most serious zoonotic prion transmission risks
in North America because of huge venison consumption (>6 million deer/elk
hunted and consumed annually in the USA alone), significant prion infectivity in
muscles and other tissues/fluids from CWD-affected cervids, and usually high
levels of individual exposure to CWD resulting from consumption of the affected
animal among often just family and friends. However, we still do not know
whether CWD prions can infect humans in the brain or peripheral tissues or
whether clinical/asymptomatic CWD zoonosis has already occurred, and we have no
essays to reliably detect CWD infection in humans. We hypothesize that:
(1) The classic CWD prion strain can infect humans at low levels in the
brain and peripheral lymphoid tissues;
(2) The cervid-to-human transmission barrier is dependent on the cervid
prion strain and influenced by the host (human) prion protein (PrP) primary
sequence;
(3) Reliable essays can be established to detect CWD infection in
humans;and
(4) CWD transmission to humans has already occurred. We will test these
hypotheses in 4 Aims using transgenic (Tg) mouse models and complementary in
vitro approaches.
Aim 1 will prove that the classical CWD strain may infect humans in brain
or peripheral lymphoid tissues at low levels by conducting systemic bioassays in
a set of "humanized" Tg mouse lines expressing common human PrP variants using a
number of CWD isolates at varying doses and routes. Experimental "human CWD"
samples will also be generated for Aim 3.
Aim 2 will test the hypothesis that the cervid-to-human prion transmission
barrier is dependent on prion strain and influenced by the host (human) PrP
sequence by examining and comparing the transmission efficiency and phenotypes
of several atypical/unusual CWD isolates/strains as well as a few prion strains
from other species that have adapted to cervid PrP sequence, utilizing the same
panel of humanized Tg mouse lines as in Aim 1.
Aim 3 will establish reliable essays for detection and surveillance of CWD
infection in humans by examining in details the clinical, pathological,
biochemical and in vitro seeding properties of existing and future experimental
"human CWD" samples generated from Aims 1-2 and compare them with those of
common sporadic human Creutzfeldt-Jakob disease (sCJD) prions.
Aim 4 will attempt to detect clinical CWD-affected human cases by examining
a significant number of brain samples from prion-affected human subjects in the
USA and Canada who have consumed venison from CWD-endemic areas utilizing the
criteria and essays established in Aim 3. The findings from this proposal will
greatly advance our understandings on the potential and characteristics of
cervid prion transmission in humans, establish reliable essays for CWD zoonosis
and potentially discover the first case(s) of CWD infection in humans.
Public Health Relevance There are significant and increasing human exposure
to cervid prions because chronic wasting disease (CWD, a widespread and highly
infectious prion disease among deer and elk in North America) continues
spreading and consumption of venison remains popular, but our understanding on
cervid-to-human prion transmission is still very limited, raising public health
concerns. This proposal aims to define the zoonotic risks of cervid prions and
set up and apply essays to detect CWD zoonosis using mouse models and in vitro
methods. The findings will greatly expand our knowledge on the potentials and
characteristics of cervid prion transmission in humans, establish reliable
essays for such infections and may discover the first case(s) of CWD infection
in humans.
Funding Agency Agency National Institute of Health (NIH)
Institute National Institute of Neurological Disorders and Stroke (NINDS)
Type Research Project (R01)
Project # 1R01NS088604-01A1
Application # 9037884
Study Section Cellular and Molecular Biology of Neurodegeneration Study
Section (CMND)
Program Officer Wong, May
Project Start 2015-09-30
Project End 2019-07-31
Budget Start 2015-09-30
Budget End 2016-07-31
Support Year 1
Fiscal Year 2015
Total Cost $337,507
Indirect Cost $118,756
Institution
Name Case Western Reserve University
Department Pathology
Type Schools of Medicine
DUNS # 077758407
City Cleveland
State OH
Country United States
Zip Code 44106
===========================================================
We hypothesize that:
(1) The classic CWD prion strain can infect humans at low levels in the
brain and peripheral lymphoid tissues;
(2) The cervid-to-human transmission barrier is dependent on the cervid
prion strain and influenced by the host (human) prion protein (PrP) primary
sequence;
(3) Reliable essays can be established to detect CWD infection in
humans;and
(4) *** CWD transmission to humans has already occurred. *** We will test
these hypotheses in 4 Aims using transgenic (Tg) mouse models and complementary
in vitro approaches.
============================================================
Key Molecular Mechanisms of TSEs
Zabel, Mark D.
Colorado State University-Fort Collins, Fort Collins, CO, United States
Abstract Prion diseases, or transmissible spongiform encephalopathies (TSEs),
are fatal neurodegenerative diseases affecting humans, cervids, bovids, and
ovids. The absolute requirement of PrPC expression to generate prion diseases
and the lack of instructional nucleic acid define prions as unique infectious
agents. Prions exhibit species-specific tropism, inferring that unique prion
strains exist that preferentially infct certain host species and confront
transmission barriers to heterologous host species. However, transmission
barriers are not absolute. Scientific consensus agrees that the sheep TSE
scrapie probably breached the transmission barrier to cattle causing bovine
spongiform encephalopathy that subsequently breached the human transmission
barrier and likely caused several hundred deaths by a new-variant form of the
human TSE Creutzfeldt-Jakob disease in the UK and Europe. The impact to human
health, emotion and economies can still be felt in areas like farming, blood and
organ donations and the threat of a latent TSE epidemic. This precedent raises
the real possibility of other TSEs, like chronic wasting disease of cervids,
overcoming similar human transmission barriers. A groundbreaking discovery made
last year revealed that mice infected with heterologous prion strains facing
significant transmission barriers replicated prions far more readily in spleens
than brains6. Furthermore, these splenic prions exhibited weakened transmission
barriers and expanded host ranges compared to neurogenic prions. These data
question conventional wisdom of avoiding neural tissue to avoid prion
xenotransmission, when more promiscuous prions may lurk in extraneural tissues.
Data derived from work previously funded by NIH demonstrate that Complement
receptors CD21/35 bind prions and high density PrPC and differentially impact
prion disease depending on the prion isolate or strain used. Recent advances in
live animal and whole organ imaging have led us to generate preliminary data to
support novel, innovative approaches to assessing prion capture and transport.
We plan to test our unifying hypothesis for this proposal that CD21/35 control
the processes of peripheral prion capture, transport, strain selection and
xenotransmission in the following specific aims. 1. Assess the role of CD21/35
in splenic prion strain selection and host range expansion. 2. Determine whether
CD21/35 and C1q differentially bind distinct prion strains 3. Monitor the
effects of CD21/35 on prion trafficking in real time and space 4. Assess the
role of CD21/35 in incunabular prion trafficking
Public Health Relevance Transmissible spongiform encephalopathies, or prion
diseases, are devastating illnesses that greatly impact public health,
agriculture and wildlife in North America and around the world. The impact to
human health, emotion and economies can still be felt in areas like farming,
blood and organ donations and the threat of a latent TSE epidemic. This
precedent raises the real possibility of other TSEs, like chronic wasting
disease (CWD) of cervids, overcoming similar human transmission barriers. Early
this year Canada reported its first case of BSE in over a decade audits first
case of CWD in farmed elk in three years, underscoring the need for continued
vigilance and research. Identifying mechanisms of transmission and zoonoses
remains an extremely important and intense area of research that will benefit
human and other animal populations.
Funding Agency Agency National Institute of Health (NIH)
Institute National Institute of Allergy and Infectious Diseases (NIAID)
Type High Priority, Short Term Project Award (R56)
Project # 1R56AI122273-01A1
Application # 9211114
Study Section Cellular and Molecular Biology of Neurodegeneration Study
Section (CMND)
Program Officer Beisel, Christopher E
Project Start 2016-02-16
Project End 2017-01-31
Budget Start 2016-02-16
Budget End 2017-01-31
Support Year 1
Fiscal Year 2016
Total Cost
Indirect Cost Institution Name Colorado State University-Fort Collins
Department Microbiology/Immun/Virology
Type Schools of Veterinary Medicine
DUNS # 785979618 City Fort Collins
State CO
Country United States
Zip Code 80523
PMCA Detection of CWD Infection in Cervid and Non-Cervid Species
Hoover, Edward Arthur
Colorado State University-Fort Collins, Fort Collins, CO, United States
Abstract Chronic wasting disease (CWD) of deer and elk is an emerging highly
transmissible prion disease now recognized in 18 States, 2 Canadian provinces,
and Korea. We have shown that Infected deer harbor and shed high levels of
infectious prions in saliva, blood, urine, and feces, and in the tissues
generating those body fluids and excreta, thereby leading to facile transmission
by direct contact and environmental contamination. We have also shown that CWD
can infect some non-cervid species, thus the potential risk CWD represents to
domestic animal species and to humans remains unknown. Whether prions borne in
blood, saliva, nasal fluids, milk, or excreta are generated or modified in the
proximate peripheral tissue sites, may differ in subtle ways from those
generated in brain, or may be adapted for mucosal infection remain open
questions. The increasing parallels in the pathogenesis between prion diseases
and human neurodegenerative conditions, such as Alzheimer's and Parkinson's
diseases, add relevance to CWD as a transmissible protein misfolding disease.
The overall goal of this work is to elucidate the process of CWD prion
transmission from mucosal secretory and excretory tissue sites by addressing
these questions: (a) What are the kinetics and magnitude of CWD prion shedding
post-exposure? (b) Are excreted prions biochemically distinct, or not, from
those in the CNS? (c) Are peripheral epithelial or CNS tissues, or both, the
source of excreted prions? and (d) Are excreted prions adapted for horizontal
transmission via natural/trans-mucosal routes? The specific aims of this
proposal are: (1) To determine the onset and consistency of CWD prion shedding
in deer and cervidized mice; (2); To compare the biochemical and biophysical
properties of excretory vs. CNS prions; (3) To determine the capacity of
peripheral tissues to support replication of CWD prions; (4) To determine the
protease- sensitive infectious fraction of excreted vs. CNS prions; and (5) To
compare the mucosal infectivity of excretory vs. CNS prions. Understanding the
mechanisms that enable efficient prion dissemination and shedding will help
elucidate how horizontally transmissible prions evolve and succeed, and is the
basis of this proposal. Understanding how infectious misfolded proteins (prions)
are generated, trafficked, shed, and transmitted will aid in preventing,
treating, and managing the risks associated with these agents and the diseases
they cause.
Public Health Relevance Chronic wasting disease (CWD) of deer and elk is an
emergent highly transmissible prion disease now recognized throughout the USA as
well as in Canada and Korea. We have shown that infected deer harbor and shed
high levels of infectious prions in saliva, blood, urine, and feces thereby
leading to transmission by direct contact and environmental contamination. In
that our studies have also shown that CWD can infect some non-cervid species,
the potential risk CWD may represents to domestic animal species and humans
remains unknown. The increasing parallels in the development of major human
neurodegenerative conditions, such as Alzheimer's and Parkinson's diseases, and
prion diseases add relevance to CWD as a model of a transmissible protein
misfolding disease. Understanding how infectious misfolded proteins (prions) are
generated and transmitted will aid in interrupting, treating, and managing the
risks associated with these agents and the diseases they cause.
Funding Agency Agency National Institute of Health (NIH)
Institute National Institute of Neurological Disorders and Stroke (NINDS)
Type Research Project (R01)
Project # 4R01NS061902-07
Application # 9010980
Study Section Cellular and Molecular Biology of Neurodegeneration Study
Section (CMND)
Program Officer Wong, May Project Start 2009-09-30
Project End 2018-02-28
Budget Start 2016-03-01
Budget End 2017-02-28
Support Year 7
Fiscal Year 2016
Total Cost $409,868
Indirect Cost $134,234 Institution Name Colorado State University-Fort
Collins
Department Microbiology/Immun/Virology
Type Schools of Veterinary Medicine
DUNS # 785979618 City Fort Collins
State CO
Country United States
Zip Code 80523
LOOKING FOR CWD IN HUMANS AS nvCJD or as an ATYPICAL CJD, LOOKING IN ALL
THE WRONG PLACES $$$
*** 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).***
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.
***********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
Monday, May 02, 2016
*** Zoonotic Potential of CWD Prions: An Update Prion 2016 Tokyo ***
*** PRION 2014 CONFERENCE CHRONIC WASTING DISEASE CWD
*** PPo3-7: Prion Transmission from Cervids to Humans is Strain-dependent
*** Here we report that a human prion strain that had adopted the cervid
prion protein (PrP) sequence through passage in cervidized transgenic mice
efficiently infected transgenic mice expressing human PrP,
*** indicating that the species barrier from cervid to humans is prion
strain-dependent and humans can be vulnerable to novel cervid prion strains.
PPo2-27:
Generation of a Novel form of Human PrPSc by Inter-species Transmission of
Cervid Prions
*** Our findings suggest that CWD prions have the capability to infect
humans, and that this ability depends on CWD strain adaptation, implying that
the risk for human health progressively increases with the spread of CWD among
cervids.
PPo2-7:
Biochemical and Biophysical Characterization of Different CWD Isolates
*** The data presented here substantiate and expand previous reports on the
existence of different CWD strains.
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.
>>>CHRONIC WASTING DISEASE , THERE WAS NO ABSOLUTE BARRIER TO
CONVERSION OF THE HUMAN PRION PROTEIN<<<
*** PRICE OF CWD TSE PRION POKER GOES UP 2014 ***
Transmissible Spongiform Encephalopathy TSE PRION update January 2, 2014
Wednesday, January 01, 2014
Molecular Barriers to Zoonotic Transmission of Prions
*** 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.
*** now, let’s see what the authors said about this casual link, personal
communications years ago, and then the latest on the zoonotic potential from CWD
to humans from the TOKYO PRION 2016 CONFERENCE.
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 ;
Monday, May 02, 2016
*** Zoonotic Potential of CWD Prions: An Update Prion 2016 Tokyo ***
*** NIH awards $11 million to UTHealth researchers to study deadly CWD
prion diseases Claudio Soto, Ph.D. ***
Public Release: 29-Jun-2016
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 ***
CWD TSE PRION CHRONIC WASTING DISEASE UPDATE
Friday, July 01, 2016
*** TEXAS Thirteen new cases of chronic wasting disease (CWD) were
confirmed at a Medina County captive white-tailed deer breeding facility on June
29, 2016
*** Scrapie Field Trial Experiments Mission, Texas, The Moore Air Force
Base Scrapie Experiment 1964 ***
How Did CWD Get Way Down In Medina County, Texas?
Confucius ponders...
Could the Scrapie experiments back around 1964 at Moore Air Force near
Mission, Texas, could this area have been ground zero for CWD TSE Prion (besides
the CWD cases that have waltzed across the Texas, New Mexico border near WSMR
Trans Pecos region since around 2001)?
Epidemiology of Scrapie in the United States 1977
snip...
Scrapie Field Trial Experiments Mission, Texas
A Scrapie Field Trial was developed at Mission, Texas, to provide
additional information for the eradication program on the epidemiology of
natural scrapie. The Mission Field Trial Station is located on 450 acres of
pastureland, part of the former Moore Air Force Base, near Mission, Texas. It
was designed to bring previously exposed, and later also unexposed, sheep or
goats to the Station and maintain and breed them under close observation for
extended periods to determine which animals would develop scrapie and define
more closely the natural spread and other epidemiological aspects of the
disease.
The 547 previously exposed sheep brought to the Mission Station beginning
in 1964 were of the Cheviot, Hampshire, Montadale, or Suffolk breeds. They were
purchased as field outbreaks occurred, and represented 21 bloodlines in which
scrapie had been diagnosed. Upon arrival at the Station, the sheep were
maintained on pasture, with supplemental feeding as necessary. The station was
divided into 2 areas: (1) a series of pastures and-pens occupied by male animals
only, and (2) a series of pastures and pens occupied by females and young
progeny of both sexes. ...
snip...see full text ;
Thursday, June 09, 2016
Scrapie Field Trial Experiments Mission, Texas, The Moore Air Force Base
Scrapie TSE Prion Experiment 1964
How Did CWD Get Way Down In Medina County, Texas?
Friday, April 22, 2016
*** Texas Scrapie Confirmed in a Hartley County Sheep where CWD was
detected in a Mule Deer
Wednesday, March 18, 2015
Chronic Wasting Disease CWD Confirmed Texas Trans Pecos March 18, 2015
Wednesday, March 25, 2015
Chronic Wasting Disease CWD Cases Confirmed In New Mexico 2013 and 2014
UPDATE 2015
very important ;
Sunday, July 10, 2016
>>>*** Primary transmission of CWD versus scrapie prions from
small ruminants to ovine and cervid PrP transgenic mice ***<<<
Monday, April 04, 2016
***>>>Limited amplification of chronic wasting disease prions in
the peripheral tissues of intracerebrally inoculated cattle<<<***
Saturday, July 09, 2016
*** Texas Intrastate – within state movement of all Cervid or Trucking
Chronic Wasting Disease CWD TSE Prion Moratorium
Saturday, April 23, 2016
SCRAPIE WS-01: Prion diseases in animals and zoonotic potential 2016
Prion. 10:S15-S21. 2016 ISSN: 1933-6896 printl 1933-690X
Monday, May 02, 2016
*** Zoonotic Potential of CWD Prions: An Update Prion 2016 Tokyo ***
Sunday, July 17, 2016
*** CHRONIC WASTING DISEASE CWD TSE PRION GLOBAL REPORT UPDATE JULY 17 2016
***
Saturday, April 16, 2016
APHIS [Docket No. APHIS-2016-0029] Secretary's Advisory Committee on Animal
Health; Meeting May 2, 2016, and June 16, 2016 Singeltary Submission
Thursday, April 14, 2016
Arizona 22 year old diagnosed with Creutzfeldt Jakob Disease CJD
2001 Deepthroat to Singeltary
The most frightening thing I have read all day is the report of Gambetti's
finding of a new strain of sporadic cjd in young people.........Dear God, what
in the name of all that is holy is that!!! If the US has different strains of
scrapie.....why???? than the UK...then would the same mechanisms that make
different strains of scrapie here make different strains of BSE...if the
patterns are different in sheep and mice for scrapie.....could not the BSE be
different in the cattle, in the mink, in the humans.......I really think the
slides or tissues and everything from these young people with the new strain of
sporadic cjd should be put up to be analyzed by many, many experts in
cjd........bse.....scrapie Scrape the damn slide and put it into
mice.....wait.....chop up the mouse brain and and spinal cord........put into
some more mice.....dammit amplify the thing and start the damned
research.....This is NOT rocket science...we need to use what we know and get
off our butts and move....the whining about how long everything takes.....well
it takes a whole lot longer if you whine for a year and then start the
research!!! Not sure where I read this but it was a recent press release or
something like that: I thought I would fall out of my chair when I read about
how there was no worry about infectivity from a histopath slide or tissues
because they are preserved in formic acid, or formalin or formaldehyde.....for
God's sake........ Ask any pathologist in the UK what the brain tissues in the
formalin looks like after a year.......it is a big fat sponge...the agent
continues to eat the brain ......you can't make slides anymore because the agent
has never stopped........and the old slides that are stained with Hemolysin and
Eosin......they get holier and holier and degenerate and continue...what you
looked at 6 months ago is not there........Gambetti better be photographing
every damned thing he is looking at.....
Okay, you need to know. You don't need to pass it on as nothing will come
of it and there is not a damned thing anyone can do about it. Don't even hint at
it as it will be denied and laughed at.......... USDA is gonna do as little as
possible until there is actually a human case in the USA of the nvcjd........if
you want to move this thing along and shake the earth....then we gotta get the
victims families to make sure whoever is doing the autopsy is credible,
trustworthy, and a saint with the courage of Joan of Arc........I am not
kidding!!!! so, unless we get a human death from EXACTLY the same form with
EXACTLY the same histopath lesions as seen in the UK nvcjd........forget any
action........it is ALL gonna be sporadic!!!
And, if there is a case.......there is gonna be every effort to link it to
international travel, international food, etc. etc. etc. etc. etc. They will go
so far as to find out if a sex partner had ever traveled to the UK/europe, etc.
etc. .... It is gonna be a long, lonely, dangerous twisted journey to the truth.
They have all the cards, all the money, and are willing to threaten and carry
out those threats....and this may be their biggest downfall...
Thanks as always for your help.
(Recently had a very startling revelation from a rather senior person in
government here..........knocked me out of my chair........you must keep
pushing. If I was a power person....I would be demanding that there be a least a
million bovine tested as soon as possible and agressively seeking this disease.
The big players are coming out of the woodwork as there is money to be made!!!
In short: "FIRE AT WILL"!!! for the very dumb....who's "will"! "Will be the
burden to bare if there is any coverup!"
again it was said years ago and it should be taken seriously....BSE will
NEVER be found in the US! As for the BSE conference call...I think you did a
great service to freedom of information and making some people feign
integrity...I find it scary to see that most of the "experts" are employed by
the federal government or are supported on the "teat" of federal funds. A scary
picture! I hope there is a confidential panel organized by the new government to
really investigate this thing.
You need to watch your back........but keep picking at them.......like a
buzzard to the bone...you just may get to the truth!!! (You probably have more
support than you know. Too many people are afraid to show you or let anyone else
know. I have heard a few things myself... you ask the questions that everyone
else is too afraid to ask.)
==============end...TSS=============
U.S.A. 50 STATE BSE MAD COW CONFERENCE CALL Jan. 9, 2001
SPONTANEOUS ATYPICAL BOVINE SPONGIFORM ENCEPHALOPATHY
LMAO!
***Moreover, sporadic disease has never been observed in breeding colonies
or primate research laboratories, most notably among hundreds of animals over
several decades of study at the National Institutes of Health25, and in nearly
twenty older animals continuously housed in our own facility.***
Atypical BSE...Spontaneous...LOL
BSE identified in France
Posted May 2, 2016
A cow in northern France has been confirmed to have bovine spongiform
encephalopathy, according to the World Organisation for Animal Health
(OIE).
The cow had developed partial paralysis and was euthanized March 1, a March
25 OIE report states.
BSE is a fatal neurologic prion disease with a typical incubation period of
four to five years. The cow in France was almost 5 years old.
The affected cow had the classic form of BSE, which is most often
associated with feed containing neurologic tissue from infected animals. It is
distinct from atypical BSE, which may develop spontaneously, according to
information from the U.S. Centers for Disease Control and Prevention.
Investigators were trying to identify the source of infection and other
animals at risk for BSE at the time the report was published.
The affected bovine, a Salers female born on April, 8th 2011, showed
paresis and was euthanized on March, 1st 2016. Samples made on March, 4th 2016
during rendering were analyzed at the Department Laboratory of La Somme. The
rapid test proved positive on March, 8th 2016 and the samples were then sent for
further analysis to the National Reference Laboratory, ANSES, which confirmed a
case of classical BSE on March, 21st 2016. The European Union Reference
Laboratory confirmed those results on the basis of documentation on March, 23rd
2016.
>>> It is distinct from atypical BSE, which may develop
spontaneously, according to information from the U.S. Centers for Disease
Control and Prevention.
THIS IS A MYTH $$$
***atypical spontaneous BSE in France LOL***
FRANCE STOPS TESTING FOR MAD COW DISEASE BSE, and here’s why, to many
spontaneous events of mad cow disease $$$
***so 20 cases of atypical BSE in France, compared to the remaining 40
cases in the remaining 12 Countries, divided by the remaining 12 Countries,
about 3+ cases per country, besides Frances 20 cases. you cannot explain this
away with any spontaneous BSe. ...TSS
Sunday, October 5, 2014
France stops BSE testing for Mad Cow Disease
Thursday, March 24, 2016
FRANCE CONFIRMS BOVINE SPONGIFORM ENCEPHALOPATHY BSE MAD COW (ESB) chez une
vache dans les Ardennes
***atypical spontaneous BSE in France LOL***
FRANCE STOPS TESTING FOR MAD COW DISEASE BSE, and here’s why, to many
spontaneous events of mad cow disease $$$
If you Compare France to other Countries with atypical BSE, in my opinion,
you cannot explain this with ‘spontaneous’.
Table 1: Number of Atypical BSE cases reported by EU Member States in the
period 2001–2014 by country and by type (L- and H-BSE) (extracted from EU BSE
databases on 1 July 2014). By 2015, these data might be more comprehensive
following a request from the European Commission to Member States for re-testing
and retrospective classification of all positive bovine isolates in the EU in
the years 2003–2009
BSE type
Country 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013(a)
2014(a) Total
H-BSE Austria 1 1
France(b) 1 2 3 1 2 2 2 2 15
Germany 1 1 2
Ireland 1 1 2 1 5
The Netherlands 1 1
Poland 1 1 2
Portugal 1 1
Spain 1 1 2
Sweden 1 1
United Kingdom 1 1 1 1 1 5
Total 2 3 3 1 1 2 2 2 4 4 5 1 4 1 35
L-BSE Austria 1 1 2
Denmark 1 1
France(b) 1 1 1 1 2 1 3 2 1 1 14
Germany 1 1 2
Italy 1 1 1 1 1 5
The Netherlands 1 1 1 3
Poland 1 2 2 1 2 1 2 1 12
Spain 2 2
United Kingdom 1 1 1 1 4
Total 0 5 3 4 3 3 6 3 3 4 3 6 1 1 45
Total Atypical cases (H + L)
2 8 6 5 4 5 8 5 7 8 8 7 5 2 80
(a): Data for 2013-2014 are incomplete and may not include all
cases/countries reported.
(b): France has performed extensive retrospective testing to classify BSE
cases, which is probably the explanation for the higher number of Atypical BSE
cases reported in this country.
The number of Atypical BSE cases detected in countries that have already
identified them seems to be similar from year to year. In France, a
retrospective study of all TSE-positive cattle identified through the compulsory
EU surveillance between 2001 and 2007 indicated that the prevalence of H-BSE and
L-BSE was 0.35 and 0.41 cases per million adult cattle tested, respectively,
which increased to 1.9 and 1.7 cases per million, respectively, in tested
animals over eight years old (Biacabe et al., 2008). No comprehensive study on
the prevalence of Atypical BSE cases has yet been carried out in other EU Member
States. All cases of Atypical BSE reported in the EU BSE databases have been
identified by active surveillance testing (59 % in fallen stock, 38 % in healthy
slaughtered cattle and 4 % in emergency slaughtered cattle). Cases were reported
in animals over eight years of age, with the exception of two cases (one H-BSE
and one L-BSE) detected in Spain in 2011/2012. One additional case of H-BSE was
detected in Switzerland in 2012 in a cow born in Germany in 2005 (Guldimann et
al., 2012).
SPONTANEOUS TRANSMISSIBLE SPONGIFORM ENCEPHALOPATHY TSE PRION AKA MAD COW
TYPE DISEASE ???
*** We describe the transmission of spongiform encephalopathy in a
non-human primate inoculated 10 years earlier with a strain of sheep c-scrapie.
Because of this extended incubation period in a facility in which other prion
diseases are under study, we are obliged to consider two alternative
possibilities that might explain its occurrence. We first considered the
possibility of a sporadic origin (like CJD in humans). Such an event is
extremely improbable because the inoculated animal was 14 years old when the
clinical signs appeared, i.e. about 40% through the expected natural lifetime of
this species, compared to a peak age incidence of 60–65 years in human sporadic
CJD, or about 80% through their expected lifetimes.
***Moreover, sporadic disease has never been observed in breeding colonies
or primate research laboratories, most notably among hundreds of animals over
several decades of study at the National Institutes of Health25, and in nearly
twenty older animals continuously housed in our own facility.***
>>> Moreover, sporadic disease has never been observed in breeding
colonies or primate research laboratories, most notably among hundreds of
animals over several decades of study at the National Institutes of Health25,
and in nearly twenty older animals continuously housed in our own facility.
<<<
Thursday, June 9, 2016
Advisory Committee; Transmissible Spongiform Encephalopathies Advisory
Committee; Termination
*** Needless conflict ***
Nature 485, 279–280 (17 May 2012) doi:10.1038/485279b
Published online 16 May 2012
Terry S. Singeltary Sr. said:
I kindly wish to submit the following please ;
Terry S. Singeltary Sr. Bacliff, Texas USA 77518 flounder9@verizon.net
