Monday, August 20, 2012

CASE REPORTS CREUTZFELDT-JAKOB DISEASE: AN UNDER-RECOGNIZED CAUSE OF DEMENTIA

CASE REPORTS CREUTZFELDT-JAKOB DISEASE: AN UNDER-RECOGNIZED CAUSE OF DEMENTIA
To the Editor: Creutzfeldt-Jakob disease (CJD) is a progressive neurodegenerative condition with negative prognosis caused by an isoform of the prion protein.1,2 Partly because of its low prevalence, physicians often neglect it in the differential diagnosis of cognitive decline and as possible cause of dementia in older persons. CJD is usually characterized by rapidly progressive impairment of cognitive function associated with myoclonus, pyramidal, and extrapyramidal dysfunction; cerebellar and visual disturbances; akinetic mutism, or any combination of these. This report presents a paradigmatic case of CJD recently diagnosed at the Department of Geriatrics, University Hospital Agostino Gemelli (Rome, Italy).
CASE REPORT A 72-year-old man was admitted to the Geriatric Acute Care Unit in September 2009 because of rapid cognitive decline (characterized by confusion, memory impairment, and visual hallucinations) that had started suddenly the previous month. He had been previously admitted to two other hospitals for these symptoms. He had been hastily discharged from both with a primary diagnosis of “Alzheimer’s disease” and referred to specific outpatient clinics. Upon admission, he was unable to walk without assistance and showed behavioral disorders (irritability, mood swings, psychomotor agitation). He had congestive heart failure, chronic atrial fibrillation, chronic obstructive pulmonary disease, and obesity. He had also had a heart pacemaker VVI implanted 2 years before for sick sinus syndrome. Routine blood tests and urinalysis were substantially within normal ranges. He underwent two serial electroencephalograms (EEGs), which detected periodic sharp wave complexes. Because magnetic resonance imaging could not be done because of his pacemaker, a head computed tomography (CT) scan was performed, revealing abnormal density signaling in the white matter (in particular at the subcortical region and semioval center) with slight dilatation of ventricles. Myoclonus, rigidity, postural instability with cerebellar ataxia, pyramidal and extrapyramidal signs, and speech disorders progressively appeared during the first days of his hospital stay. He subsequently developed a hypokinetic, mute state and cortical blindness. Lumbar puncture could not be performed because of the rapid deterioration of his clinical condition and also considering the presence of the spikes in the EEGs. He died from pneumonia 4 months after the onset of cognitive decline. Upon autopsy, macroscopic examination revealed moderate cortical atrophy of the brain. Histological examination showed spongiform degeneration, neuronal loss and astroglial proliferation (Figure 1A). Immunohistochemical examination showed the presence of abnormal deposits of prion protein (Figure 1B). Alzheimer’s disease–type pathology with early signs of beta-amyloid deposits was also observed.
DISCUSSION By sharing common features with other dementia types3–7 and being rare8 (with an incidence rate estimated as one to two cases per million people per year), CJD can easily be missed or misdiagnosed. The diagnosis of CJD is based on clinical and instrumental (EEG, cerebrospinal fluid, magnetic resonance imaging) parameters,9 but special attention is required to make a correct diagnosis. A definite diagnosis requires neuropathological demonstration of the presence of the prion protein. In the current case, the presence of CJD was determined by comprehensively assessing the patient and building up the diagnosis based on the presence of rapid cognitive decline and neurological features. These elements were all present (to differing extents) at the previous in-hospital evaluations the patient received for the same condition, but his condition was too quickly labeled as “Alzheimer’s disease.” Moreover, the EEG was a useful diagnostic tool to validate the clinical hypothesis. It could be argued that reaching the correct diagnosis did not change the history of the patient, but the determination of the likely etiology of dementia is important in establishing the prognosis and management of the patient.10 Although no known treatment is currently available for CJD, an earlier diagnosis might have allowed a more-suitable allocation of the patient to a second-level healthcare facility better designed to respond to his needs.
Therefore, diagnostic suspicion of CJD should always be considered (regardless of age) in any patient presenting with rapidly progressive dementia, especially if associated with other neurological signs (pyramidal, extra-pyramidal, or cerebellar). The present case emphasizes the need to carefully and comprehensively approach the differential diagnosis of dementia to avoid incorrect diagnoses that may merely increase the burden of the disease on a patient and his or her relatives. A prompt and correct diagnosis may then allow the optimal allocation of the patient to the proper clinical setting. Finally, potentiating of facilities and resources able to take care of older adults rapidly and efficiently after their in-hospital stay is crucial in an aging society.
Francesco Cerullo, MD Giovanni Gambassi, MD, PhD Department of Gerontology, Geriatrics and Physiatry Catholic University of the Sacred Heart Rome, Italy Franca Del Nonno, MD Andrea Baiocchini, MD Department of Pathology, National Institute for Infectious Diseases, Istituto Di Ricovero e Cura a Carattere Scientifico “Lazzaro Spallanzani” Rome, Italy Piero Parchi, MD, PhD Department of Neurological Science University of Bologna Bologna, Italy Matteo Cesari, MD, PhD Institut du Vieillissement, Universite´ de Toulouse Toulouse, France
ACKNOWLEDGMENTS
Conflict of Interest: The editor in chief has reviewed the conflict of interest checklist provided by the authors and has determined that the authors have no financial or any other kind of personal conflicts with this paper.
Author Contributions: Francesco Cerullo, Giovanni Gambassi: Diagnosis and preparation of manuscript. Franca Del Nonno, Andrea Baiocchini, Piero Parchi: Diagnosis. Matteo Cesari: Preparation of manuscript. All of the authors read the final version of the manuscript. Sponsor’s Role: None.
REFERENCES
1. Glatzel M, Stoeck K, Seeger H et al. Human prion diseases: Molecular and clinical aspects. Arch Neurol 2005;62:545–552. 2. Zou WQ, Gambetti P. Prion: The chameleon protein. Cell Mol Life Sci 2007;64:3266–3270. 3. Crecelius C. Diagnosis and treatment of non-Alzheimer’s dementias. J Am Med Dir Assoc 2003;4:H25–H29. 4. Geschwind M, Haman A, Miller B. Rapidly progressive dementia. Neurol Clinic 2007;25:783–789. 5. Iida T, Doh-ura K, Kawashima T et al. An atypical case of sporadic Creutzfeldt-Jakob disease with Parkinson’s disease. Neuropathology 2001; 21:294–297. 6. Josephs KA, Tsuboi Y, Dickson DW. Creutzfeldt-Jakob disease presenting as progressive supranuclear palsy. Eur J Neurol 2004;11:343–346. 7. Marin LF, Felı´cio AC, Bichuetti DB et al. Clinical findings in Creutzfeldt- Jakob disease mimicking dementia with Lewy bodies. Arq Neuropsiquiatr 2008;66:741–743. 8. Pruisiner SB. Shattuck lecture-neurodegenerative diseases and prions. N Engl J Med 2001;344:1516–1526. 9. Zerr I, Kallenberg K, Summers DM et al. Updated clinical diagnostic criteria for sporadic Creutzfeldt-Jakob disease. Brain 2009;132:2659– 2668. 10. Espinoza RT. Improving the recognition and management of dementia in long-term care: Obstacles and opportunities. J Am Med Dir Assoc 2006;7:128–130.
Letters
JAMA. 2001;285(6):733-734. doi: 10.1001/jama.285.6.733
Diagnosis and Reporting of Creutzfeldt-Jakob Disease
Terry S. Singeltary, Sr Bacliff, Tex
Since this article does not have an abstract, we have provided the first 150 words of the full text.
KEYWORDS: creutzfeldt-jakob disease, diagnosis.
To the Editor: In their Research Letter, Dr Gibbons and colleagues1 reported that the annual US death rate due to Creutzfeldt-Jakob disease (CJD) has been stable since 1985. These estimates, however, are based only on reported cases, and do not include misdiagnosed or preclinical cases. It seems to me that misdiagnosis alone would drastically change these figures. An unknown number of persons with a diagnosis of Alzheimer disease in fact may have CJD, although only a small number of these patients receive the postmortem examination necessary to make this diagnosis. Furthermore, only a few states have made CJD reportable. Human and animal transmissible spongiform encephalopathies should be reportable nationwide and internationally.
References 1. Gibbons RV, Holman RC, Belay ED, Schonberger LB. Creutzfeldt-Jakob disease in the United States: 1979-1998. JAMA. 2000;284:2322-2323.
Published March 26, 2003
RE-Monitoring the occurrence of emerging forms of Creutzfeldt-Jakob disease in the United States
Terry S. Singeltary, retired (medically)
I lost my mother to hvCJD (Heidenhain Variant CJD). I would like to comment on the CDC's attempts to monitor the occurrence of emerging forms of CJD. Asante, Collinge et al [1] have reported that BSE transmission to the 129-methionine genotype can lead to an alternate phenotype that is indistinguishable from type 2 PrPSc, the commonest sporadic CJD. However, CJD and all human TSEs are not reportable nationally. CJD and all human TSEs must be made reportable in every state and internationally. I hope that the CDC does not continue to expect us to still believe that the 85%+ of all CJD cases which are sporadic are all spontaneous, without route/source. We have many TSEs in the USA in both animal and man. CWD in deer/elk is spreading rapidly and CWD does transmit to mink, ferret, cattle, and squirrel monkey by intracerebral inoculation. With the known incubation periods in other TSEs, oral transmission studies of CWD may take much longer. Every victim/family of CJD/TSEs should be asked about route and source of this agent. To prolong this will only spread the agent and needlessly expose others. In light of the findings of Asante and Collinge et al, there should be drastic measures to safeguard the medical and surgical arena from sporadic CJDs and all human TSEs. I only ponder how many sporadic CJDs in the USA are type 2 PrPSc?
Published March 26, 2003
THE PATHOLOGICAL PROTEIN
BY Philip Yam
Yam Philip Yam News Editor Scientific American www.sciam.com
Answering critics like Terry Singeltary, who feels that the U.S. under- counts CJD, Schonberger conceded that the current surveillance system has errors but stated that most of the errors will be confined to the older population.
CHAPTER 14
Laying Odds
Are prion diseases more prevalent than we thought?
Researchers and government officials badly underestimated the threat that mad cow disease posed when it first appeared in Britain. They didn't think bovine spongiform encephalopathy was a zoonosis-an animal disease that can sicken people. The 1996 news that BSE could infect humans with a new form of Creutzfeldt-Jakob disease stunned the world. It also got some biomedical researchers wondering whether sporadic CJD may really be a manifestation of a zoonotic sickness. Might it be caused by the ingestion of prions, as variant CJD is?
Revisiting Sporadic CJD
It's not hard to get Terry Singeltary going. "I have my conspiracy theories," admitted the 49-year-old Texan.1 Singeltary is probably the nation's most relentless consumer advocate when it comes to issues in prion diseases. He has helped families learn about the sickness and coordinated efforts with support groups such as CJD Voice and the CJD Foundation. He has also connected with others who are critical of the American way of handling the threat of prion diseases. Such critics include Consumers Union's Michael Hansen, journalist John Stauber, and Thomas Pringle, who used to run the voluminous www.madcow. org Web site. These three lend their expertise to newspaper and magazine stories about prion diseases, and they usually argue that prions represent more of a threat than people realize, and that the government has responded poorly to the dangers because it is more concerned about protecting the beef industry than people's health.
Singeltary has similar inclinations. ...
snip...
THE PATHOLOGICAL PROTEIN
Hardcover, 304 pages plus photos and illustrations. ISBN 0-387-95508-9
June 2003
BY Philip Yam
CHAPTER 14 LAYING ODDS
Answering critics like Terry Singeltary, who feels that the U.S. under- counts CJD, Schonberger conceded that the current surveillance system has errors but stated that most of the errors will be confined to the older population.
14th ICID International Scientific Exchange Brochure -
Final Abstract Number: ISE.114
Session: International Scientific Exchange
Transmissible Spongiform encephalopathy (TSE) animal and human TSE in North America update October 2009
T. Singeltary
Bacliff, TX, USA
Background:
An update on atypical BSE and other TSE in North America. Please remember, the typical U.K. c-BSE, the atypical l-BSE (BASE), and h-BSE have all been documented in North America, along with the typical scrapie's, and atypical Nor-98 Scrapie, and to date, 2 different strains of CWD, and also TME. All these TSE in different species have been rendered and fed to food producing animals for humans and animals in North America (TSE in cats and dogs ?), and that the trading of these TSEs via animals and products via the USA and Canada has been immense over the years, decades.
Methods:
12 years independent research of available data
Results:
I propose that the current diagnostic criteria for human TSEs only enhances and helps the spreading of human TSE from the continued belief of the UKBSEnvCJD only theory in 2009. With all the science to date refuting it, to continue to validate this old myth, will only spread this TSE agent through a multitude of potential routes and sources i.e. consumption, medical i.e., surgical, blood, dental, endoscopy, optical, nutritional supplements, cosmetics etc.
Conclusion:
I would like to submit a review of past CJD surveillance in the USA, and the urgent need to make all human TSE in the USA a reportable disease, in every state, of every age group, and to make this mandatory immediately without further delay. The ramifications of not doing so will only allow this agent to spread further in the medical, dental, surgical arena's. Restricting the reporting of CJD and or any human TSE is NOT scientific. Iatrogenic CJD knows NO age group, TSE knows no boundaries. I propose as with Aguzzi, Asante, Collinge, Caughey, Deslys, Dormont, Gibbs, Gajdusek, Ironside, Manuelidis, Marsh, et al and many more, that the world of TSE Transmissible Spongiform Encephalopathy is far from an exact science, but there is enough proven science to date that this myth should be put to rest once and for all, and that we move forward with a new classification for human and animal TSE that would properly identify the infected species, the source species, and then the route.
CJD Singeltary submission to PLOS ;
No competing interests declared.
see full text ;
seems the sites showing the cases in other EU countries from sporadic CJD have been taken down. however, from my files ;
IF we look at sporadic incidence of CJD in UK from 1993 to 2003, the incidence rose from 37 in 1993 to 77 in 2003. THIS seems to show an increase to me? I do not understand the statement ;
However, in the period following the first published description of vCJD in 1996, there was no increasing trend in the reported annual number of U.K. sporadic CJD deaths (52).
IF we go further and look at some of the other documented BSE countries, you will the increase of sporadic CJD there as well ;
Canada from 2 to 25
France from 35 to 108
Germany 21+ to 96
Italy 27 to 76
snip...
5 Includes 18 cases in which the diagnosis is pending, and 18 inconclusive cases;
6 Includes 23 (22 from 2010) cases with type determination pending in which the diagnosis of vCJD has been excluded.
Please notice where sporadic CJD cases in 1996 went from 28 cases, to 215 cases in 2009, the highest recorded year to date. sporadic CJD is on a steady rise, and has been since 1996.
I also urge you to again notice these disturbing factors in lines 5 and 6 ;
5 Includes 18 cases in which the diagnosis is pending, and 18 inconclusive cases;
6 Includes 23 (22 from 2010) cases with type determination pending in which the diagnosis of vCJD has been excluded.
========end=====tss=====2011
From: Terry S. Singeltary Sr.
Sent: Wednesday, May 16, 2012 3:29 PM
To: BSE-L@LISTS.AEGEE.ORG
Subject: [BSE-L] Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion disease, Iatrogenic, what if ?
Proposal ID: 29403
Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion disease, Iatrogenic, what if ?
Background
Alzheimer’s disease and Transmissible Spongiform Encephalopathy disease have both been around a long time, and was discovered in or around the same time frame, early 1900’s. Both disease, and it’s variants, in many cases are merely names of the people that first discovered them. Both diseases are incurable and debilitating brain disease, that are in the end, 100% fatal, with the incubation/clinical period of the Alzheimer’s disease being longer than the TSE prion disease. Symptoms are very similar, and pathology is very similar. I propose that Alzheimer’s is a TSE disease of low dose, slow, and long incubation disease, and that Alzheimer’s is Transmissible, and is a threat to the public via the many Iatrogenic routes and sources. It was said long ago that the only thing that disputes this, is Alzheimer’s disease transmissibility, or the lack of. today, there is enough documented science (some confidential), that shows that indeed Alzheimer’s is transmissible. The risk factor for friendly fire, and or the pass-it-forward mode i.e. Iatrogenic transmission is a real threat, and one that needs to be addressed immediately.
Methods
Through years of research, as a layperson, of peer review journals, transmission studies, and observations of loved ones and friends that have died from both Alzheimer’s and the TSE prion disease i.e. Heidenhain Variant Creutzfelt Jakob Disease CJD.
Results
The likelihood of many victims of Alzheimer’s disease from the many different Iatrogenic routes and modes of transmission as with the TSE prion disease. TSE prion disease survives ashing to 600 degrees celsius, that’s around 1112 degrees farenheit. you cannot cook the TSE prion disease out of meat. you can take the ash and mix it with saline and inject that ash into a mouse, and the mouse will go down with TSE. Prion Infected Meat-and-Bone Meal Is Still Infectious after Biodiesel Production as well. the TSE prion agent also survives Simulated Wastewater Treatment Processes. IN fact, you should also know that the TSE Prion agent will survive in the environment for years, if not decades. you can bury it and it will not go away. TSE prion agent is capable of infected your water table i.e. Detection of protease-resistant cervid prion protein in water from a CWD-endemic area. it’s not your ordinary pathogen you can just cook it out and be done with. that’s what’s so worrisome about Iatrogenic mode of transmission, a simple autoclave will not kill this TSE prion agent.
Conclusions
There should be a Global Congressional Science round table event (one of scientist and doctors et al only, NO CORPORATE, POLITICIANS ALLOWED) set up immediately to address these concerns from the many potential routes and sources of the TSE prion disease, including Alzheimer’s disease, and a emergency global doctrine put into effect to help combat the spread of Alzheimer’s disease via the medical, surgical, dental, tissue, and blood arena’s. All human and animal TSE prion disease, including Alzheimer’s should be made reportable in every state, and Internationally, WITH NO age restrictions. Until a proven method of decontamination and autoclaving is proven, and put forth in use universally, in all hospitals and medical, surgical arena’s, or the TSE prion agent will continue to spread. IF we wait until science and corporate politicians wait until politics let science _prove_ this once and for all, and set forth regulations there from, we will all be exposed to the TSE Prion agents, if that has not happened already. what’s the use of science progressing human life to the century mark, if your brain does not work?
combined cannot exceed 350 Words
shortened to proper word count ;
Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion disease, Iatrogenic, what if ?
Background
Alzheimer’s disease and Transmissible Spongiform Encephalopathy disease have both been around a long time, and was discovered in or around the same time frame, early 1900’s. Both diseases are incurable and debilitating brain disease, that are in the end, 100% fatal, with the incubation/clinical period of the Alzheimer’s disease being longer (most of the time) than the TSE prion disease. Symptoms are very similar, and pathology is very similar.
Methods
Through years of research, as a layperson, of peer review journals, transmission studies, and observations of loved ones and friends that have died from both Alzheimer’s and the TSE prion disease i.e. Heidenhain Variant Creutzfelt Jakob Disease CJD.
Results
I propose that Alzheimer’s is a TSE disease of low dose, slow, and long incubation disease, and that Alzheimer’s is Transmissible, and is a threat to the public via the many Iatrogenic routes and sources. It was said long ago that the only thing that disputes this, is Alzheimer’s disease transmissibility, or the lack of. The likelihood of many victims of Alzheimer’s disease from the many different Iatrogenic routes and modes of transmission as with the TSE prion disease.
Conclusions
There should be a Global Congressional Science round table event set up immediately to address these concerns from the many potential routes and sources of the TSE prion disease, including Alzheimer’s disease, and a emergency global doctrine put into effect to help combat the spread of Alzheimer’s disease via the medical, surgical, dental, tissue, and blood arena’s. All human and animal TSE prion disease, including Alzheimer’s should be made reportable in every state, and Internationally, WITH NO age restrictions. Until a proven method of decontamination and autoclaving is proven, and put forth in use universally, in all hospitals and medical, surgical arena’s, or the TSE prion agent will continue to spread. IF we wait until science and corporate politicians wait until politics lets science _prove_ this once and for all, and set forth regulations there from, we will all be exposed to the TSE Prion agents, if that has not happened already.
end...tss
Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion disease, Iatrogenic, what if ?
source references
Ann N Y Acad Sci. 1982;396:131-43.
Alzheimer's disease and transmissible virus dementia (Creutzfeldt-Jakob disease).
Brown P, Salazar AM, Gibbs CJ Jr, Gajdusek DC.
Abstract
Ample justification exists on clinical, pathologic, and biologic grounds for considering a similar pathogenesis for AD and the spongiform virus encephalopathies. However, the crux of the comparison rests squarely on results of attempts to transmit AD to experimental animals, and these results have not as yet validated a common etiology. Investigations of the biologic similarities between AD and the spongiform virus encephalopathies proceed in several laboratories, and our own observation of inoculated animals will be continued in the hope that incubation periods for AD may be even longer than those of CJD.
BSE101/1 0136
IN CONFIDENCE
CMO
From: Dr J S Metters DCMO
4 November 1992
TRANSMISSION OF ALZHEIMER TYPE PLAQUES TO PRIMATES
CJD1/9 0185
Ref: 1M51A
IN STRICT CONFIDENCE
From: Dr. A Wight Date: 5 January 1993
Copies:
Dr Metters
Dr Skinner
Dr Pickles
Dr Morris
Mr Murray
TRANSMISSION OF ALZHEIMER-TYPE PLAQUES TO PRIMATES
Wednesday, January 5, 2011
ENLARGING SPECTRUM OF PRION-LIKE DISEASES Prusiner Colby et al 2011 Prions
David W. Colby1,* and Stanley B. Prusiner1,2
Tuesday, October 4, 2011
Molecular Psychiatry
advance online publication 4 October 2011; doi: 10.1038/mp.2011.120
De novo induction of amyloid-ß deposition in vivo
Our results suggest that some of the typical brain abnormalities associated with AD can be induced by a prion-like mechanism of disease transmission through propagation of protein misfolding. These findings may have broad implications for understanding the molecular mechanisms responsible for the initiation of AD, and may contribute to the development of new strategies for disease prevention and intervention. Keywords: amyloid; prion; protein misfolding; disease transmission
see more here ;
Wednesday, September 21, 2011
PrioNet Canada researchers in Vancouver confirm prion-like properties in Amyotrophic Lateral Sclerosis (ALS)
snip...end
Thank You for accepting my submission
# 29403, Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion disease, Iatrogenic, what if ? and the opportunity to present it, at the Alzheimer’s Association International Conference 2012 (AAIC), as a poster presentation. However, with great sadness, I must regretfully decline the invitation due to a medical reasons, and traveling to Canada, of which is not possible. ...
Thank You,
With Kindest Regards,
I am sincerely,
Terry S. Singeltary Sr.
P.O. Box 42
Bacliff, Texas USA 77518
flounder9@verizon.net
From:
Sent: Saturday, April 07, 2012 8:20 PM
To: Terry S. Singeltary Sr.
Subject: RE: re-submission
Dear Terry,
Yes, your proposal was accepted as a poster presentation. Please decline the invitation if appropriate.
Best Regards,
______________________________________
Alzheimer’s Association – National Office
225 North Michigan Avenue – Floor 17
Chicago, Illinois 60601
=============snip...end...source reference...# 29403==========
Wednesday, May 16, 2012
Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion disease, Iatrogenic, what if ?
Proposal ID: 29403
see the Duke, Pa, Yale, and Mexican study here, showing the misdiagnosis of CJD TSE prion disease as Alzheimers ;
Monday, July 23, 2012
The National Prion Disease Pathology Surveillance Center July 2012
TSS

Saturday, August 18, 2012

RedCross Request Jerome H. Holland Laboratory is collecting small volumes of blood from patients afflicted with various forms of transmissible spongiform encephalopathies (TSE)/prion diseases and their blood-related family members 2012

RedCross Request Jerome H. Holland Laboratory is collecting small volumes of blood from patients afflicted with various forms of transmissible spongiform encephalopathies (TSE)/prion diseases and their blood-related family members 2012
UPDATED INFORMATION AUGUST 2012
REDCROSS REQUEST
The American National Red Cross (Red Cross) Jerome H. Holland Laboratory for Biomedical Research in Rockville, Maryland is collecting small volumes of blood from patients afflicted with various forms of transmissible spongiform encephalopathies (TSE)/prion diseases and their blood-related family members. The purpose of the research is to build a blood sample repository for studies on ways to detect the presence of prion protein or other markers of the disease in human blood.
Recent epidemiological evidence indicates that blood of patients with variant form of Creutzfeldt-Jakob disease (vCJD), that is prevalent in the United Kingdom, is infectious.
The questions about the possibility that blood from patients with the sporadic and familial forms of TSE might also be infectious is still not resolved even though 10 years of searching has not revealed any examples of blood-related transmission from patients with these non-variant forms of disease.
The development of a blood test to identify affected people in the pre-clinical stage of disease could eliminate the uncertainty about TSE-related blood safety. Some tests have been successful for testing animals infected with TSEs, but in order to know if any test will be reliable in humans, we need to test human blood.
CJD patients and their families are the only source of blood specimens that can answer this question, and we therefore ask you to support our effort.
If you or an affected relative is interested in participating, please contact the name listed below. No more than 50 ml of blood should be collected at a location convenient to you through your own arrangements with your physician and the blood sample should be sent to the Holland Laboratory at no cost to you. The samples will be processed and stored, frozen indefinitely, at the Holland Laboratory in Rockville, Maryland. The Red Cross will provide access to only designated research staff at the Red Cross or other research groups that have provided convincing evidence for a test to detect TSE in animals.
Participating individuals will NOT be notified about test results because the tests that will be performed on blood are experimental and their significance is not known and will remain uncertain for some years to come. The CJD foundation will be notified of any publications coming from our research.
Contact information:
Dr. Larisa Cervenakova; Phone: 301-738-0765; e-mail: cervenakl@usa.redcross.org
Dr. Larisa Cervenakova
Senior Scientist, Biomedical Services
American Red Cross
15601 Crabbs Branch Way
Rockville, MD 20855
(240) 314-3536 (p)
(240) 888-3615 (c)
(301) 610-4120 (f)
Coordinator for the CJD Lookback Study. The study is ongoing and we are looking for blood donors who subsequently develop CJD.
Below is my contact information, please feel free to pass on my information to those family members who want to participate in the Lookback Study.
Kerri Dorsey, MPH
Project Manager 1
American Red Cross
Holland Laboratory
Transmissible Disease Department
15601 Crabbs Branch Way
Rockville, MD 20855
Ph: 240-314-3523
Fax: 301-610-4121
END...TSS
CJD LOOKBACK STUDY
TRANSMISSIBLE SPONGIFORM ENCEPHALOPATHIES ADVISORY COMMITTEE MEETING
Thursday, June 2, 1999
CHAIRMAN BROWN: My name is Dr. Paul Brown. Welcome to the FDA traveling road show. We are asked yet once more by the FDA to consider a question of theoretical risk in the absence of sufficient knowledge on which to base any firm conclusion. The issue before us today is that of excluding categories of American blood donors who have either visited or resided for longer periods of time in Great Britain. The issue is sufficiently delicate, as you see that we have been moved outside the Beltway. (Laughter.)snip... "Dr. Alan Williams is employed by the American Red Cross, Holland Labs,and is Scientific Adviser for the Florida Blood Services and Canadian Blood Services. In addition, he has financial interests in firms that could be affected by the general discussions. "Dr. Richard Race has financial interests in firms that could be affected by the general discussions and is a public health science researcher. "In the event that the discussions involve specific products or specific firms for which FDA participants have a financial interest, the participants are aware of the need to exclude themselves from such involvement. And their exclusion will be noted for the public record. A copy of the waivers is available by written request under the Freedom of Information Act. "With respect to all other meeting participants, we ask in the interest of fairness that they address any current or previous financial involvement with any firm whose product they may wish to comment upon." So ends the reading of the conflict of interest statement. Dr. Brown, I turn the meeting over to you.snip...
Sunday, June 3, 2012
A new neurological disease in primates inoculated with prion-infected blood or blood components
Friday, June 29, 2012
Highly Efficient Prion Transmission by Blood Transfusion
price of prion poker goes up again $$$
Monday, June 11, 2012
Guidance for Industry Draft Guidance for Industry: Amendment to “Guidance for Industry: Revised Preventive Measures to Reduce the Possible Risk of Transmission of Creutzfeldt-Jakob Disease and Variant Creutzfeldt-Jakob Disease by Blood and Blood Products”
Thursday, August 16, 2012
Blood products, collected from a donor who was at risk for variant Creutzfeldt-Jakob disease ( vCJD) USA JUNE, JULY, AUGUST 2012
kind regards, terry

Monday, August 13, 2012

Summary results of the second national survey of abnormal prion prevalence in archived appendix specimens August 2012

Summary results of the second national survey of abnormal prion prevalence in archived appendix specimens
In April 2008, the Spongiform Encephalopathy Advisory Committee (SEAC) considered available prevalence data for variant Creutzfeldt-Jakob Disease (vCJD) in the British population and advised that a second appendix survey, using the same approach as a previous appendix tissue survey [1] on samples from the 1941 to 1985 birth cohort, be undertaken to further refine the estimate for the prevalence of subclinical infection [2].The second unlinked anonymous survey of the prevalence of abnormal prion protein in archived appendix tissues has now been completed and this summary provides an update to the interim results published in September 2011 [3,4].

The survey examined appendices by immunohistochemistry from operations conducted between 2000 and 2012 and collected from 41 hospitals throughout England. Abnormal prion accumulation was detected within the follicular dendritic cells of 16 appendices out of 32,441 suitable samples examined. None of the positive appendices have come from the 176 known vCJD cases in the UK. In line with the interim findings, the final overall prevalence estimate, 493 per million (95% Confidence Interval (CI): 282 to 801 per million), remained statistically consistent with results from the earlier appendix survey (237 per million, 95%CI 49 to 692 per million) which examined samples from operations performed between 1995 and 1999 [1]. The prevalence estimates by birth cohort were 733 per million (95% CI: 269 to 1596 per million) in those born between 1941 and 1960 and 412 per million (95% CI: 198 to 758 per million) in those born between 1961 and 1985: these results were also in line with the interim findings [3,4].

The survey was conducted by a collaboration of the HPA, the Department of Neurodegenerative Diseases at the UCL Institute of Neurology, the Animal Health and Veterinary Laboratories Agency, the National Creutzfeldt-Jakob Disease Research and Surveillance Unit, the Histopathology Department of Derriford Hospital in Plymouth, and the MRC Prion Unit.

The final survey results have been considered by the Transmissible Spongiform Encephalopathies Risk Assessment Sub-Group of the Advisory Committee on Dangerous Pathogens, the successor to SEAC [5]. In summary, the estimated prevalence range largely overlaps that from the first survey, but is narrower with a higher central estimate (around 1 in 2000 compared with around 1 in 4000). The new survey also demonstrates the presence of prion protein across a wider birth cohort than previously.
The hypothesis that the prevalence of abnormal prions found in both appendix surveys to date is linked to the epidemic of BSE in cattle in Britain can be tested directly by studying further appendix samples archived prior to the BSE outbreak and samples from those born in 1996 or later by which time measures had been put in place to protect the food chain [5].

References

1. Hilton DA, Ghani AC, Conyers L, Edwards P, McCardle L, Ritchie D, et al. Prevalence of lymphoreticular prion protein accumulation in UK tissue samples. J Pathol 2004; 203: 733-9.
2. Spongiform Encephalopathy Advisory Committee (SEAC). Position Statement. Prevalence of subclinical variant Creutzfeldt-Jakob Disease infections. August 2008. SEAC position statement.
3. HPA. Interim data from the current national survey of abnormal prion prevalence in archived appendix specimens. September 2011. Health Protection Report 5(36). Available at: http://www.hpa.org.uk/hpr/archives/2011/news3611.htm#cjd.

4. HPA. Creutzfeldt-Jakob disease (CJD) biannual update (2012/1). February 2012. Health Protection Report 6(6). Available at: http://www.hpa.org.uk/hpr/archives/2012/hpr0612.pdf.
5. Advisory Committee on Dangerous Pathogens (ACDP) TSE Risk Assessment Subgroup. Position Statement on occurrence of vCJD and prevalence of infection in the UK population. July 2012. Available at: http://www.dh.gov.uk/ab/ACDP/TSEguidance/DH_125868.
 
 
1 in 2,000 is huge.
considering this study was only looking at the appendix, was only using immunohistochemistry, this study tells little, and may even be giving false hope.
in my opinion, everyone in the U.K., back in the worse days of the mad cow epidemic, that consumed beef, would have had to have been exposed to BSE, how many there from that are sub-clinical, that is another question, one this study does not answer in full.


TSS
 
 
 
 
Survey underlines need for minimizing secondary human exposure to prions
 
 
16 August 2012
 
 
Official publications
 
 
Tags: TSE, vCJD
 
 
 
Source: Health Protection Agenca/ ACDP
 
 
 
The Health Protection Agency of the UK has released its summary results of the second national survey of abnormal prion prevalence in archived appendix specimens. The Advisory Committee on Dangerous Pathogens (ACDP) TSE Risk Assessment Subgroup published a comment on the these results in a position paper.
 
 
 
The position paper concludes amongst other things that (highlighting by USP):
 
 
 
- While fundamental research into prion diseases continues, it is essential to ensure that consistent, long-term surveillance of the population continues. This should include development of methods to characterise the disease and if appropriate differentiate between strains.
 
 
 
- Despite the welcome fall in vCJD diagnoses, the indication of relatively widespread, albeit “silent”, vCJD infection necessitates continued attention to the risks of secondary, person-to-person transmission, and for applied research to support the development and implementation of risk management strategies.
 
 
 
 
 
 
 
 
 
 
 
Published Date: 2011-11-07 19:37:21
Subject: PRO/AH/EDR> Prion disease update 2011 (10) Archive Number: 20111107.3317
 
 
PRION DISEASE UPDATE 2011 (10)
 
 
Tuesday, October 05, 2010
Large-scale immunohistochemical examination for lymphoreticular prion protein in tonsil specimens collected in Britain
05 Oct 2010 14:46
 
 
Friday, August 10, 2012
Incidents of Potential iatrogenic Creutzfeldt-Jakob disease (CJD) biannual update (July 2012)
 
 
North America has NO surveillance system for iatrogenic CJD. a few mishaps of late ;
 
 
Tuesday, July 31, 2012
11 patients may have been exposed to fatal disease Creutzfeldt-Jakob Disease CJD Greenville Memorial Hospital
 
 
Thursday, August 02, 2012
CJD case in Saint John prompts letter to patients Canada CJD case in Saint John prompts letter to patients
 
 
Wednesday, May 16, 2012
Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion disease, Iatrogenic, what if ?

Proposal ID: 29403
 
 
 
layperson

TSS

Friday, August 10, 2012

Incidents of Potential iatrogenic Creutzfeldt-Jakob disease (CJD) biannual update (July 2012)

Infection report/CJD



Creutzfeldt-Jakob disease (CJD) biannual update (July 2012)



This six-monthly report provides an update on reports of incidents of potential iatrogenic (healthcare-acquired) exposure to CJD. The data are correct as of 27 July 2012.



For numbers of CJD case reports, readers should consult data provided by the National CJD Research and Surveillance Unit (NCJDRSU), Edinburgh [1]. The latest yearly analysis of vCJD reports (onsets and deaths) is also available from the NCJDRSU website [2].



Reports of incidents of potential iatrogenic exposure to CJD via surgery: 2000 to 30 June 2012 A surgical incident occurs when a patient with or at increased risk of CJD has undergone surgery without the appropriate infection control guidance being followed [3]. This could happen if a patient undergoes surgery during the incubation period of CJD, or because information about CJD risk factors is not available at the time of surgery. If this happens, surgical instruments that may be contaminated with the infectious agent that causes CJD, could pose a transmission risk when they are re-used on other patients.



In June 2010 the CJD Incidents Panel changed its protocol for reporting surgical incidents, and a new reporting algorithm was published on the HPA CJD Section website. Under the new protocol only CJD cases (or patients at increased risk of CJD) who have undergone surgical procedures which are thought to pose a possible transmission risk (i.e. within the likely infectious incubation period, and involving medium or high risk procedures) are categorised as ‘surgical incidents'. Other procedures, either outside the incubation period, or involving low infectivity tissues, are categorised as ‘CJD Reports'.



Table 1 shows the number of CJD surgical incidents reported to the CJD Incidents Panel from 2000 to 30 June 2012 by the diagnosis of the index patient. As shown in the table, 44% of surgical incidents and 64% of reports result from surgery on index cases diagnosed with sporadic CJD. Advice has been issued for 4 surgical incidents and 17 CJD surgical reports that have been reported to the CJD Incidents Panel in the first six months of 2012. Information about the CJD Incidents Panel can be found on the HPA website [4].



Table 1. CJD surgical incidents (n=452) and reports (n=59) reported to the CJD Incidents Panel (which have been closed, or where advice has been issued) by diagnosis of index patient: 2000 to 30 June 2012




snip...see url link for table...tss




TOTAL 16 38 56 50 45 56 63 27 33 29 23 4 12 38 4 17 452 59



Notes: I = Incidents; R = Reports; Prior to 2010, all reports were recorded as incidents.



Health Protection Report Vol 6 No. 32 - 10 August 2012



If the investigation of a surgical incident identifies any instruments that are considered to be potentially contaminated with the infectious agent, and that could still pose an infection risk to other patients, the Panel advises that these instruments should be removed from general use or refurbished. These instruments may be quarantined, kept for exclusive use on the index patient, refurbished (endoscopes only) or destroyed. Since 2000 there have been 90 incidents in which instruments have been permanently removed from general use or refurbished (endoscopes only).



Surgical incidents resulting in ‘at risk’ patients



The Panel may advise contacting and informing patients of their possible exposure to CJD following a surgical incident. These patients should be considered 'at risk of CJD for public health purposes' and are asked to take certain precautions (i.e. not to donate blood, other tissues or organs, and to inform their medical and dental carers prior to any invasive procedures) in order to reduce the risk of transmitting the CJD agent.



The diagnosis of the index patient; the timing of the procedure relative to the development of clinical CJD; the tissue that instruments were in contact with during the procedure on the index patient; and the number of cycles of re-use and decontamination the instruments have been through following the procedure on the index case – all influence the possible risk to subsequent patients.



The threshold level of risk at which patients are considered to be ‘at increased risk’ of CJD is 1%, in addition to the background risk in the UK population. This risk threshold is based on risk assessment models, using precautionary assumptions. The 1% threshold level is used as a cut off for implementing public health precautions and is not intended to be a precise measure of an individual patient's risk. A similar threshold is used for identifying other patients who have been exposed to possible CJD risks following surgical, blood, plasma and tissue incidents.



From 2000 to 30 June 2012, there have been 28 surgical incidents in which the Panel has advised that 192 patients should be considered to have an increased risk of CJD.



Patient denotifications



Following changes in the assessment of tissue infectivity, the Panel has advised that 38 patients in 14 surgical incidents who were originally considered (and notified) as being ‘at risk' of CJD should no longer be considered ‘at risk', and should be denotified. In November 2005, gastrointestinal endoscopies without invasive procedures were reclassified as low risk procedures, and advice was issued to denotify two patients in one surgical incident. In 2006, anterior eye was reclassified as a ‘medium low' infectivity tissue. This led to a change in advice as only the first patient on whom instruments were used following an anterior eye procedure was to be considered as having an increased risk of CJD. Previously this had applied to the first two patients exposed to such instruments. This resulted in the Panel advising that 16 patients in seven incidents should be denotified. In 2009, the anterior eye was further reclassified as a low infectivity tissue. Following this change, the Panel advised that another 20 patients should be denotified.



As of 30 June 2012, the Panel has received confirmation that of the 34 patients originally notified of their exposure (out of the 38 originally considered to be ‘at risk'), 26 patients have been informed that they are no longer considered ‘at risk' and eight patients died before they could be denotified.



Current 'at risk' patients resulting from surgical instruments



There are 15 surgical incidents in which 154 patients are still considered to be at increased risk of CJD. Currently, 125 of these 'at risk' patients have been notified and a further four notified by proxy, that they are at increased risk of CJD. Local decisions have been taken not to notify four patients and 21 patients have died before notification in these incidents.



Health Protection Report Vol 6 No. 32 - 10 August 2012



Table 2. Surgical ‘at risk’ patients still identified as being ‘at increased risk of CJD’ by the Panel by procedure on the index patient



Diagnosis of index patient



Procedure on index patient



Number of incidents



Patients identified as 'at risk'



Patients who died before being notified



Local decision not to notify patient Notified patients



Sporadic Brain biopsy 2 28 2 1 25a



Sporadic Ophthalmic surgery 1 11 2 – 9



Sporadic ENT 1 1 - - 1



Variant Appendectomy 1 2 - 2 -



Variant Endoscopy 1 1 - 1 -



Asymptomatic infected vCJD Endoscopy 1 4 1 – 3b



At risk variant Endoscopy 6 37 5 – 32



At risk familial Neurosurgery 1 31 10 – 21



At risk familial Ophthalmic surgery 1 39 1 – 38



Total 15 154 21 4 129c



Notes



a. Three of these patients were notified by proxy



b. One of these patients was notified by proxy



c. Four of these patients were notified by proxy



Monitoring of patients 'at increased risk' of CJD



The CJD Incidents Panel and the Advisory Committee on Dangerous Pathogens Transmissible Spongiform Encephalopathy Risk Management Subgroup (formerly the ACDP TSE Working Group) have identified a range of individuals and groups who may have been exposed to an increased risk of CJD as a consequence of their medical care (see table 3 below).



It is important to follow up these individuals to help determine the risks of CJD spreading to patients through different routes. Follow up involves a range of activities and is carried out by different organisations. At core, follow up aims to ascertain whether any people who may have been exposed to increased CJD risks go on to develop CJD.



Health Protection Report Vol 6 No. 32 - 10 August 2012



Table 3. Summary of health status of individuals at increased risk of CJD/vCJD (as at 30 June 2012)



'At risk' Group



Identified as 'at risk'



Ever notified as being 'at risk'



Alive and Notified



CJD/vCJD cases



Asymptomatic vCJD infections d



Recipients of blood from vCJD cases 67 27 18 3 1



Blood donors to vCJD cases 112 107 104 - - Other recipients from blood donors to vCJD cases 34 32 22 - -



Plasma product recipients (all except one have non-bleeding disorders) 11 10 4 - -



Surgical contacts of all CJD cases 154 129 119 - -



Highly transfused patients (recipients of blood from ≥80 donors identified at pre-surgical assessment) 10 9 8 - -



Total for at risk groups where HPA holds data 388 310 273 3 1



Patients with bleeding disorders who received UK sourced plasma products a 3,872 n/a n/a – 1



Recipients of human derived growth hormone b 1,883 1,883 1,513 71 -



Total for all 'at risk' groups c 6,143 >2,193 >1,786 74 2



a. Data provided by the UK Haemophilia Centre Doctors' Organisation (UKHCDO). These are minimum figures. Central reporting for bleeding disorder patients is incomplete, and seven patients have opted out of the central UKHCDO database. Individual haemophilia centres were asked to send out standardised letters of notification to all their ‘at risk’ patients, but the exact number of patients who received these letters and are therefore aware of their risk is not known.



b. Data provided by the Institute for Child Health. A small number of ‘at risk' growth hormone recipients are not included in the Institute of Child Health study so the true number ‘at risk’ will be greater. The exact number of growth hormone recipients in the ICH study currently aware of their risk is not known, as given their age at the original notification many were informed indirectly, by their parents.



c. These are minimum figures given the comments made above.



d. An asymptomatic infection is when an individual does not exhibit any of the signs and symptoms of CJD in life but abnormal prion protein indicative of CJD infection has been found in tissue obtained from them. In these cases the abnormal prion protein was identified during post mortem after the individuals had died of other causes.




References




1. The National Creutzfeldt-Jakob Disease Research and Surveillance Unit, The University of Edinburgh. CJD statistics. Available at: http://www.cjd.ed.ac.uk/figures.htm.



2. The National Creutzfeldt-Jakob Disease Research and Surveillance Unit, The University of Edinburgh. Incidence of variant Creutzfeldt-Jakob disease onsets and deaths in the UK January 1994 - May 2011. Edinburgh: NCJDSU, 18 May 2011. Available at: http://www.cjd.ed.ac.uk/cjdq68.pdf.



3. Transmissible spongiform encephalopathy agents: safe working and the prevention of infection. The ACDP TSE Risk Management Subgroup. http://www.dh.gov.uk/ab/ACDP/TSEguidance/index.htm



4. HPA CJD Incidents Panel [online].




Available at: http://www.hpa.org.uk/web/ CJDIncidentsPanel.





Health Protection Report Vol 6 No. 32 - 10 August 2012








Tuesday, June 26, 2012



Creutzfeldt Jakob Disease Human TSE report update North America, Canada, Mexico, and USDA PRION UNIT as of May 18, 2012



type determination pending Creutzfeldt Jakob Disease (tdpCJD), is on the rise in Canada and the USA










Wednesday, August 01, 2012



Behavioural and Psychiatric Features of the Human Prion Diseases: Experience in 368 Prospectively Studied Patients










Monday, August 06, 2012


Atypical neuropathological sCJD-MM phenotype with abundant white matter Kuru-type plaques sparing the cerebellar cortex







Saturday, July 07, 2012



Class II, Blood products, collected from a donor who was at risk for variant Creutzfeldt-Jakob disease ( vCJD) USA



Enforcement Report









Monday, August 6, 2012



TAFS



BSE Final report in USA August 6, 2012









Monday, July 23, 2012



The National Prion Disease Pathology Surveillance Center July 2012









North America has NO surveillance system for iatrogenic CJD. a few mishaps of late ;





Tuesday, July 31, 2012



11 patients may have been exposed to fatal disease Creutzfeldt-Jakob Disease CJD Greenville Memorial Hospital









Thursday, August 02, 2012



CJD case in Saint John prompts letter to patients Canada CJD case in Saint John prompts letter to patients









Wednesday, May 16, 2012



Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion disease, Iatrogenic, what if ?



Proposal ID: 29403









Tuesday, May 29, 2012



Transmissible Proteins: Expanding the Prion Heresy









Friday, May 11, 2012



ProMetic Life Sciences Inc.: P-Capt® Filtration Prevents Transmission of Endogenous Blood-Borne Infectivity in Primates









Wednesday, August 24, 2011



All Clinically-Relevant Blood Components Transmit Prion Disease following a Single Blood Transfusion: A Sheep Model of vCJD









Wednesday, August 24, 2011



There Is No Safe Dose of Prions









Sunday, May 1, 2011



W.H.O. T.S.E. PRION Blood products and related biologicals May 2011









Monday, February 7, 2011



FDA’s Currently-Recommended Policies to Reduce the Possible Risk of Transmission of CJD and vCJD by Blood and Blood Products 2011 ???









Friday, February 10, 2012



Creutzfeldt-Jakob disease (CJD) biannual update (2012/1) potential iatrogenic (healthcare-acquired) exposure to CJD, and on the National Anonymous Tonsil Archive









Thursday, December 29, 2011



Aerosols An underestimated vehicle for transmission of prion diseases?



PRION www.landesbioscience.com



please see more on Aerosols and TSE prion disease here ;









Saturday, February 12, 2011



Another Pathologists dies from CJD, another potential occupational death ?



another happenstance of bad luck, a spontaneous event from nothing, or friendly fire ???









2011 TO 2012 UPDATE



Saturday, December 3, 2011



Candidate Cell Substrates, Vaccine Production, and Transmissible Spongiform Encephalopathies



Volume 17, Number 12—December 2011









Tuesday, December 14, 2010



Infection control of CJD, vCJD and other human prion diseases in healthcare and community settings part 4, Annex A1, Annex J,



UPDATE DECEMBER 2010









Sunday, August 01, 2010



Blood product, collected from a donors possibly at increased risk for vCJD only, was distributed USA JULY 2010









Tuesday, September 14, 2010



Transmissible Spongiform Encephalopathies Advisory Committee; Notice of Meeting October 28 and 29, 2010 (COMMENT SUBMISSION)









Thursday, September 02, 2010



NEUROSURGERY AND CREUTZFELDT-JAKOB DISEASE Health Law, Ethics, and Human Rights The Disclosure Dilemma









Thursday, July 08, 2010



GLOBAL CLUSTERS OF CREUTZFELDT JAKOB DISEASE - A REVIEW 2010









Wednesday, June 02, 2010



CJD Annex H UPDATE AFTER DEATH PRECAUTIONS Published: 2 June 2003 Updated: May 2010









Tuesday, May 11, 2010



Current risk of iatrogenic Creutzfeld–Jakob disease in the UK: efficacy of available cleaning chemistries and reusability of neurosurgical instruments









Saturday, January 16, 2010



Evidence For CJD TSE Transmission Via Endoscopes 1-24-3 re-Singeltary to Bramble et al



Evidence For CJD/TSE Transmission Via Endoscopes



From Terry S. Singletary, Sr flounder@wt.net 1-24-3









Monday, July 20, 2009



Pre-surgical risk assessment for variant Creutzfeldt-Jakob disease (vCJD) risk in neurosurgery and eye surgery units









Friday, July 17, 2009



Revision to pre-surgical assessment of risk for vCJD in neurosurgery and eye surgery units Volume 3 No 28; 17 July 2009









Sunday, May 10, 2009



Meeting of the Transmissible Spongiform Encephalopathies Committee On June 12, 2009 (Singeltary submission)









Thursday, January 29, 2009



Medical Procedures and Risk for Sporadic Creutzfeldt-Jakob Disease, Japan, 1999-2008 (WARNING TO Neurosurgeons and Ophthalmologists) Volume 15, Number 2-February 2009 Research









Sunday, July 20, 2008



Red Cross told to fix blood collection or face charges 15 years after warnings issued, few changes made to ensure safety









Monday, December 31, 2007



Risk Assessment of Transmission of Sporadic Creutzfeldt-Jakob Disease in Endodontic Practice in Absence of Adequate Prion Inactivation









Saturday, December 08, 2007



Transfusion Transmission of Human Prion Diseases









Tuesday, October 09, 2007



nvCJD TSE BLOOD UPDATE









Saturday, December 08, 2007



Transfusion Transmission of Human Prion Diseases









Saturday, January 20, 2007



Fourth case of transfusion-associated vCJD infection in the United Kingdom









vCJD case study highlights blood transfusion risk 9 Dec 2006 by Terry S. Singeltary Sr.



THIS was like closing the barn door after the mad cows got loose. not only the red cross, but the FDA has failed the public in protecting them from the TSE aka mad cow agent. TSE agent ie bse, base, cwd, scrapie, tme, ...



vCJD case study highlights blood transfusion risk -


















Subject: CJD: update for dental staff



Date: November 12, 2006 at 3:25 pm PST



1: Dent Update. 2006 Oct;33(8):454-6, 458-60.



CJD: update for dental staff.









layperson





Terry S. Singeltary Sr.


P.O. Box 42


Bacliff, Texas USA 77518


flounder9@verizon.net