Date post: | 16-Jan-2016 |
Category: |
Documents |
Upload: | barbara-york |
View: | 222 times |
Download: | 0 times |
Teaching WorkshopBovine Spongiform Encephalopathy (BSE)
Overview and Awareness Meetings
Definition of BSE
Bovine Spongiform Encephalopathy:
A chronic degenerative disease affecting the central nervous system (CNS) of cattle
Commonly called “mad cow disease”
History of BSE
First diagnosed in Great Britain in 1986
Worldwide there have been more than 180,000 cases 95% have been in the United Kingdom In 22 countries, including the first positive in the
U.S.
BSE Symptoms in Cattle
Changes in temperament such as nervousness or aggression
Abnormal posture Incoordination and difficulty in rising Decreased milk production Loss of body condition despite continued
appetite
BSE in Cattle
No treatment No test to diagnose BSE in live animal Infective agent
Most accepted theory is that it is a prion, an abnormal form of a normal protein known as a cellular prion protein
Data suggest that the cause may be animal feed containing contaminated meat and bone meal
First BSE Positive in United States Presumptive positive on December 23, 2003
Confirmed positive on December 25, 2003
BSE Positive in U.S. – Timeline December 9, 2003
A non-ambulatory Holstein dairy cow arrives at Vern’s Moses Lake Meats, in Moses Lake, Washington
Animal’s condition attributed to complications from calving
Samples taken for the Animal and Plant Health Inspection Service (APHIS) BSE surveillance testing program
BSE – Timeline
December 11 Samples arrive at USDA’s National Veterinary
Services Laboratories in Ames, Iowa
December 22 Preliminary test results are positive
BSE – Timeline
December 23 Further test results are positive Agriculture Secretary Ann M. Veneman
announces a “presumptive positive” APHIS begins epidemiological investigation and
places quarantine on herd where cow last resided in Mabton, Washington
BSE – Timeline
December 24 FSIS initiates Class II recall of all meat (10,410
pounds) from group of 20 animals slaughtered at plant on December 9
APHIS determines disposition of three calves from the infected cow
December 25 World reference laboratory in Weybridge, England
confirms BSE positive
BSE – Timeline
December 27 – Traceback of infected cow indicates: It was imported from Canada in 2001 Was likely 6 ½ years old, instead of the 4 ½ years
the last owner’s records indicated Investigative efforts involve Canadian officials
December 29 USDA identifies 8 more cows from the same herd
in Canada that may have entered the U.S.
BSE – Timeline
December 30 Agriculture Secretary Veneman announces
additional safeguards against BSE
January 5 USDA announces decision to depopulate the bull
calf operation in Sunnyside, Washington, that includes a calf born to the infected cow
BSE – Timeline
January 6 DNA evidence helps to verify, with a high degree
of certainty, that the BSE positive cow originated from a dairy farm in Alberta, Canada
January 12 FSIS publishes 3 rules and a notice which take
effect immediately
Close Working Relationships
Throughout this process, FSIS has worked closely with APHIS, state officials in affected states, and the Canadian Government.
FSIS Regulatory Authority
Under the Federal Meat Inspection Act (FMIA) (21 U.S.C. 601 et seq.) FSIS issues regulations governing the production of meat
and meat food products prepared for distribution in commerce.
A meat food product is adulterated if, among other circumstances, it bears or contains any poisonous or deleterious substance that may render it injurious to health (21 U.S.C. 601(m) (1) or if it is for any reason unsound, unhealthful, unwholesome, or unfit for human food (21 U.S.C. 601 (m) (3)).
Published Following BSE Positive Published in Federal Register January 12,
2004: Interim final rules with request for comments:
Prohibition of the Use of Specified Risk Materials for Human Food and Requirements for the Disposition of Non-Ambulatory Disabled Cattle
Advanced Meat Recovery (AMR) Systems Prohibition of the use of air-injection stunning devices
Notice on BSE Surveillance Program
Awareness Meetings
FSIS inspection program personnel held awareness meetings: In all plants that slaughter cattle or process bone-
in parts of cattle carcasses. At the first weekly PBIS meeting after receipt of
the awareness meetings notice. To explain the new requirements. To review 4 checklists with plant management.
Awareness Meetings
FSIS inspection program personnel informed plant management:
Of the need to reassess the hazard analysis and determine what steps were necessary to ensure that the plant’s products did not contain materials which might transmit BSE.
That if plants did not address procedures and controls, a Notice of Intended Enforcement (NOIE) was to be issued.
Documenting the Awareness Meetings Inspection program personnel documented
the original awareness meetings in a memorandum of interview. It included:
Who was present. Date and time the meeting was held. What was discussed. Any documents that were shared with plant
management.
Awareness Meetings
By the second weekly PBIS meeting: FSIS inspection program personnel began
verifying that the plant had incorporated appropriate procedures and controls into its: Hazard Analysis and Critical Control Points (HACCP)
Plan; Sanitation Standard Operating Procedures (Sanitation
SOPs); Or prerequisite programs.
Awareness Meetings
After the second weekly PBIS meeting,
Inspection program personnel verified that the requirements were being met utilizing the HACCP or the Sanitation SOPs procedure,
and documented noncompliance accordingly.
For More Information on BSE Log onto the FSIS website at
http://www.fsis.usda.gov/ Extensive USDA information Links to other BSE websites
FSIS Technical Service Center (TSC) Phone 1-800-233-3935