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From: TSS ()
Subject: From "ESB au quotidien" (INRA, France) to BSE-L, May 27
Date: May 27, 2005 at 6:37 am PST

##################### Bovine Spongiform Encephalopathy #####################

From "ESB au quotidien" (INRA, France) to BSE-L, May 27


Opinion of the BIOHAZ Panel on the assessment of the age limit in cattle
for the removal of certain Specified Risk Materials (SRM).
Last updated: 25 May 2005
(...) If the BSE cases in very young animals are not taken into account
and the mean age at which BSE is detected in the field is taken as the
denominator, then a cut-off at 30 months would represent a considerable
but not an absolute safety margin with respect to detectable BSE



Los Angeles Times, May 27, 2005 Animal Health Group Backs Beef Ban Lifting
From Bloomberg News
The World Organization of Animal Health said countries with mad cow
disease should be allowed to export certain cuts of beef, allowing for a
lifting of bans on U.S. and European Union meat.,1,1146154.story?coll=la-headlines-business

USDA, May 26, 2005 : Statement By Agriculture Secretary Mike Johanns
Regarding The OIE'S Adoption Of Changes To The International Animal
Health Code Chapter On BSE
"I applaud the leadership of the World Organization for Animal Health
(OIE) in modernizing the international approach to the safe trade of
beef products by updating the BSE guidelines to reflect current science.!ut/p/_s.7_0_A/7_0_1OB?contentidonly=true&contentid=2005/05/0189.xml

MeatNews : BSE RULES CHANGE : OIE declares the cattle trade does not
raise the risk of BSE.
The World Organization for Animal Health revised its guidelines on
cattle trade regarding bovine spongiform encephalopathy -- the
International Animal Health Code Chapter on BSE -- declaring that young
cattle -- even from countries with numerous cases of BSE – do not
increase the risk of BSE in other countries.

MeatingPlace : OIE alters BSE standards
by Pete Hisey on 5/27/2005 for
In its annual meeting held this week, the World Organization for Animal
Health (known under its French initials, OIE) has made changes in its
recommendations for trade status with countries of various risk
categories concerning bovine spongiform encephalopathy (BSE).






26 May 2005 - Position statement on Early phase of vCJD infection in
blood transfusion recipients is now available.
26 May 2005 - Draft minutes from the 87th SEAC meeting held on 21st
April are now available.
26 May 2005 - Summary of SEAC discussion of vertebral column (68 KB):
age at which specified risk material.

26 May 2005 - BSE has been diagnosed in a cow born in November 1999, an
announcement has been made.



Economic impact of BSE still playing out, says economist
By Sandi Alswager Karstens
University of Nebraska IANR
5/25/2005, Closed border may mean less money in the long run



The Yomiuri Shimbun
Now that Washington's measures against mad cow disease have come close
to meeting the conditions set by Japan for the resumption of beef
imports from the United States, the Food Safety Commission should
swiftly reach a conclusion on the issue.

Japan Today : U.S. expects Japan to buy its beef once ban is lifted
Japan Today, Friday, May 27, 2005
WASHINGTON — A senior U.S. official said Thursday the United States will
not be satisfied with Japan just lifting its import ban on U.S. beef,
indicating the need for ensuring that Japanese consumers buy the product.

Ex-meat packer chairman gets 7 years for beef fraud
Friday, May 27, 2005 at 10:33 JST
OSAKA — The Osaka District Court on Friday sentenced a former
Osaka-based meat-packing company chairman to seven years in prison for
swindling the government out of more than 5 billion yen by abusing a
state beef buyback program established to calm concerns over mad cow

The Asahi Shimbun, 05/27/2005
How safe is U.S. beef?
But talks on this issue have yet to start in earnest. We urge the
commission to thoroughly look into the matter and answer the questions
that have been raised. At the same time, it should reach a conclusion on
whether to resume U.S. beef imports as soon as possible.

Kyodo : Ministries' request for BSE risk assessment puzzles some experts
Some members of the independent Food Safety Commission appeared puzzled
after receiving a briefing from the health and farm ministries Thursday
about the two ministries' request for commission discussions on whether
Japan should maintain its import ban on U.S. and Canadian beef because
of mad cow disease.



Preventive Veterinary Medicine
Volume 69, Issues 3-4 , 12 July 2005, Pages 175-187

Simulation of the options for a national control programme to eradicate
scrapie from Great Britain
Simon Gubbinsa and Cerian R. Webbb

a Centre for Epidemiology and Risk Analysis, Veterinary Laboratories
Agency, New Haw, Addlestone, Surrey KT15 3NB, UK
b Farm Animal Epidemiology and Informatics Group, Department of Clinical
Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge

Because of the risk to public health posed by the potential presence of
bovine spongiform encephalopathy (BSE) in sheep, there are plans to
eradicate transmissible spongiform encephalopathies (TSEs) from the
British sheep population. We used a mathematical model for the spread of
scrapie between sheep flocks to assess the efficacy of five control
strategies at eradicating the infection from the national flock. These
range from ram-genotyping schemes through whole-flock genotyping with
selective culling to whole-flock slaughter. The impact of control was
considered under three scenarios for the long-term dynamics of scrapie
in GB: two in which scrapie is ultimately eliminated (with different
median extinction times) and one in which scrapie remains endemic.
Results suggested that it is feasible to eradicate scrapie from the
British sheep flock, but that any national control programme will take
decades to eliminate the disease and be costly. The most-effective
strategy, measured in terms of the probability of eradication and time
taken for eradication, was predicted to be whole-flock culling, which
was effective under all three scenarios for the long-term dynamics of
scrapie. Strategies involving whole-flock genotyping with selective
culling were also effective, though they were predicted to take longer
to eradicate scrapie than whole-flock culling. Ram-genotyping schemes
were effective in some instances, but not for the scenario where scrapie
remained endemic in the national flock. At low levels of reporting of
clinical disease (<20%) the probability of eradication within 100 years
was predicted to be <100% and, consequently, low levels of reporting
could compromise the effectiveness of a control programme. Moreover, the
predicted time taken to eradicate scrapie would increase markedly if the
reporting compliance decreased.!&_cdi=5145&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=7944a301fcce0f23ae376e5e2fb4e1c4

Preventive Veterinary Medicine
Volume 68, Issues 2-4 , 10 May 2005, Pages 263-275

A quantitative assessment of the BSE risk associated with fly ash and
slag from the incineration of meat-and-bone meal in a gas-fired power
plant in Denmark
Larry G. Paisley , and Julie Hostrup-Pedersen

Danish Institute for Food and Veterinary Research, Mørkhøj Bygade 19,
DK-2860 Søborg, Denmark

It has been recommended that meat-and-bone meal (MBM) be incinerated at
850 °C for at least 2 s and the ashes and slag disposed of in controlled
landfills, to dispose of animal-derived proteins. Most commonly, the MBM
is incinerated in cement works or coal-fired power plants and the ashes
and slag are incorporated into the cement or concrete.
Our goal was to assess with a Monte Carlo simulation model the bovine
spongiform encephalopathy (BSE) risk to cattle and humans posed by the
ash and slag. The results will be used by decision makers to evaluate
the need for disposal of the fly ash in controlled landfills and the
feasibility of use of the ash by the phosphate and fertilizer industries.
We assumed that all specified risk material (SRM) and MBM produced in
Denmark would be incinerated in this gas-fired power plant. Based on
observations in 2001, we assumed that, on average, six (range: 0–15)
clinical BSE cases each year were rendered into MBM and incinerated. In
addition, SRM or carcasses from 0 to 31 (median = 10)
BSE-infected-but-undetected animals/BSE case were also incinerated.
The simulations were run on a 1-week basis. Our results suggest that if
the slag is collected and re-incinerated the median BSE infectivity
remaining in the fly ash per week would be 3.1E−11 cattle ID50. A cattle
ID50 is the amount of infectivity that will cause infection in 50% of
cattle exposed to it. During the weeks when BSE was infected in the
SRM-MBM, the median infectivity in the fly ash was estimated as 8.7E−10
cattle ID50 and 2.9E−12 human ID50. The 95th percentiles were 2.1E−08
cattle ID50 and 5.8E−10 human ID50, respectively. One ton of fly ash
would contain ≤1.8E−07 cattle ID50 95% of the time. These are the
potential exposures of the cattle or human populations. The potential
exposures of individuals are far less.!&_cdi=5145&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=9bcb9a275b2c7e99421294530efc1922


Yves Le Pape


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