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From: TSS ()
Subject: Re: U.S. checking for possible case of mad cow disease Friday, June 10, 2005
Date: June 10, 2005 at 8:04 pm PST

In Reply to: Re: U.S. checking for possible case of mad cow disease Friday, June 10, 2005 posted by TSS on June 10, 2005 at 7:55 pm:

Release No. 0206.05
Contact:
USDA Press Office (202)720-4623

Printable version


STATEMENT BY DR. JOHN CLIFFORD REGARDING FURTHER ANALYSIS OF BSE
INCONCLUSIVE TEST RESULTS

June 10, 2005

"Since the USDA enhanced surveillance program for BSE began in June 2004,
more than 375,000 animals from the targeted cattle population have been
tested for BSE using a rapid test. Three of these animals tested
inconclusive and were subsequently subjected to immunohistochemistry, or
IHC, testing. The IHC is an internationally recognized confirmatory test for
BSE. All three inconclusive samples tested negative using IHC.

"Earlier this week, USDA's Office of the Inspector General (OIG), which has
been partnering with the Animal and Plant Health Inspection Service, the
Food Safety and Inspection Service, and the Agricultural Research Service by
impartially reviewing BSE-related activities and making recommendations for
improvement, recommended that all three of these samples be subjected to a
second internationally recognized confirmatory test, the OIE-recognized SAF
immunoblot test, often referred to as the Western blot test. We received
final results a short time ago. Of the three samples, two were negative, but
the third came back reactive.

"Because of the conflicting results on the IHC and Western blot tests, a
sample from this animal will be sent to the OIE-recognized reference
laboratory for BSE in Weybridge, England. USDA will also be conducting
further testing, which will take several days to complete.

"Regardless of the outcome, it is critical to note that USDA has in place a
sound system of interlocking safeguards to protect human and animal health
from BSE-including, most significantly, a ban on specified risk materials
from the human food supply. In the case of this animal, it was a
non-ambulatory (downer) animal and as such was banned from the food supply.
It was processed at a facility that handles only animals unsuitable for
human consumption, and the carcass was incinerated.

"USDA's enhanced surveillance program is designed to provide information
about the level of prevalence of BSE in the United States. Since the
inception of this program, we have fully anticipated the possibility that
additional cases of BSE would be found. And, in fact, we are extremely
gratified that to date, more than 375,000 animals have been tested for the
disease and, with the exception of the conflicting results we have received
on this one animal, all have ultimately proven to be negative for the
disease.

"USDA is committed to ensuring that our BSE program is the best that it can
be, keeping pace with science and international guidelines, and to
considering recommendations made by OIG and others in this regard. We are
committed to ensuring that we have the right protocols in place-ones that
are solidly grounded in science and consistently followed. After we receive
additional test results on this animal, we will determine what further steps
need to be taken and what changes, if any, are warranted in our surveillance
program."


Last Modified: 06/10/2005

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tentid=2005/06/0206.xml


http://www.usda.gov/wps/portal/mimedetector?url=http://easylink.ibroadcastsm
edia.tv/ripariane/bse061005.wma&text=http://easylink.ibroadcastsmedia.tv/rip
ariane/bse061005.wma


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Statement By Dr. John Clifford Regarding Further Analysis Of BSE
Inconclusive Test Results
Earlier this week, USDA's Office of the Inspector General (OIG), which has
been partnering with the Animal and Plant Health Inspection Service, the
Food Safety and Inspection Service, and the Agricultural Research Service by
impartially reviewing BSE-related activities and making recommendations for
improvement, recommended that all three of these samples be subjected to a
second internationally recognized confirmatory test, the OIE-recognized SAF
immunoblot test, often referred to as the Western blot test."

Web Cast Audio: U.S. Agriculture Officials To Provide Update On BSE
Surveillance Testing - Requires Windows Media Player


USDA BSE Roundtable Discussions - University of Minnesota in St. Paul,
Minnesota
Listed: Fact Sheets, Remarks and Webcast Video. As more items become
available they will be posted to this page.

http://www.usda.gov/wps/portal/!ut/p/_s.7_0_A/7_0_1OB

TSS




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