Transmissible spongiform encephalopathies and bovine spongiform encephalopathy (2024)

Victoria participates in the national Transmissible Spongiform Encephalopathy Freedom Assurance Program (TSEFAP).

The TSEFAP aims to enhance market confidence that Australian animals and animal products are free from Transmissible Spongiform Encephalopathies (TSEs), such as Bovine Spongiform Encephalopathy (BSE or 'mad cow disease') and scrapie, through the structured and nationally integrated management of animal-related TSE activities. This is achieved by the multiple components of the TSEFAP:

  1. active TSE surveillance
  2. ruminant feeding restrictions, including audit, feed sampling and testing
  3. imported ruminant surveillance, including buy-back schemes for targeted cattle
  4. research and development, including validation, adoption and technology transfer of diagnostic tests.

The TSEFAP is funded by industry and governments and managed by Animal Health Australia.

Active TSE surveillance in Victoria

Australia is free from BSE and scrapie. However, to continue to be classified as 'free' and to maintain access to international markets, there is an active surveillance program in place to detect cases of BSE and scrapie, should they occur. This program is known as the TSE Surveillance program.

An incentive scheme is funded by industry.

Producers who have suitably sick animals autopsied for the program are entitled to claim $330 GST free for cattle and $110 GST free for sheep.

Private vets who are called to examine cases of nervous disease in cattle, sheep and goats, and submit samples and case histories to government laboratories can claim a rebate per case of up to:

  • $374 GST inclusive for cattle
  • $242 GST inclusive for sheep
  • $137.50 (GST inclusive) for goats.

Eligible for program

To be eligible for the program, cattle must be 30 months or older and sheep and goats must be 18 months or older. They must show nervous signs that can include (but are not limited to):

  • abnormal behaviour
  • gait and sensitivity to sound and touch
  • and for sheep/goats, persistent itchiness.

More information on the National TSE Surveillance program can be found on the Animal Health Australia website.

Veterinarians wishing to submit cases for the NTSESP must examine the NTSESP Guidelines for Field Operations at Animal Health Australia and consult the department's District Veterinary or Animal Health Officers before submitting cases. This is to ensure that animals meet eligibility criteria and sample and documentation requirements are clearly understood. Incentive payments to producers and veterinarians are then assured.

For vets already familiar with the program, the relevant laboratory submission form, clinical history or necropsy report form and an application form for cattle and sheep compensation are included.

NLIS or RFID tag details must be included on the clinical history or necropsy report form.

Download:

  • Laboratory submission form(WORD - 138.5 KB)
  • Clinical history/necropsy report form (WORD - 82.9 KB)
  • Claim form for incentive payments (WORD - 116.9 KB)
  • TSE submissions and reporting – Checklist (WORD - 57.5 KB)

Ruminant feeding restrictions

Australia has banned the feeding of certain animal-derived materials to ruminants. These materials are known as restricted animal materials (RAM) and include meat, fish, eggs and poultry meals (including feathers) but do not include gelatin, milk, tallow or fish oils. The ban is known as the Ruminant Feed Ban (RFB).

Australia is free of BSE. The RFB serves to maintain this freedom by ensuring that if the agent causing BSE were to spontaneously occur or to be inadvertently introduced to Australia, it would not be able to establish a cycle of infection within the ruminant population.

Each of Australia's state and territory animal health authorities has developed similar but not identical legislation and are responsible for creating awareness, performing audits and enforcing legislation relating to the ban within their jurisdictions that follow nationally agreed guidelines and meet nationally agreed targets. In Victoria, those responsibilities are owned and given high priority by the department's animal health and welfare group. A target number of audits have to be conducted in each region each year as part of Victoria's RFB auditing program.

The RFB auditing program compliments quality assurance (QA) programs already existing within the livestock feed industry. Many but not all of the companies producing stock feeds are members of the Stock Feed Manufacturers Council of Australia (SFMCA). The SFMCA has introduced an independently audited QA program called FeedSafe sets standards of feed production that includes measures to protect ruminant feeds against contamination with RAM.

Private vets visiting farms are asked to watch for instances where ruminants might be exposed to RAM and take action to advise the farmer and prevent the risk. These instances are most likely to occur on farms where ruminants might gain access to discarded, spilt or stored pig, poultry and dog foods.

Research and development

(including validation, adoption and technology transfer of diagnostic tests)

The department has contributed significantly to the evaluation of new rapid tests for TSEs in Australia since 1998.

Transmissible spongiform encephalopathies and bovine spongiform encephalopathy (2024)

FAQs

What is transmissible spongiform encephalopathy and bovine spongiform encephalopathy? ›

Bovine spongiform encephalopathy (BSE) is a disease in cattle. It belongs to a group of fatal neurodegenerative diseases affecting humans and animals called transmissible. spongiform encephalopathies (TSEs).

What is transmissible spongiform encephalopathies in ruminants? ›

Bovine spongiform encephalopathy (BSE) is a fatal neurodegenerative brain disorder affecting cattle that is believed to be caused by abnormally folded proteins called prions. Chronic wasting disease (CWD) is a fatal brain disease found in deer and elk in certain parts of North America.

What is bovine spongiform encephalopathy caused by quizlet? ›

a progressive neurological disorder of cattle that results from infection by an unusual transmissible agent called a prion. >Scientists believe that BSE is often spread through feeding cattle various meats from slaughtered animals such as goats, sheep, and other cattle (ruminants).

What is transmissible spongiform encephalopathies in humans? ›

Transmissible spongiform encephalopathies (TSEs), also known as prion diseases, are a group of rare degenerative brain disorders characterized by tiny holes that give the brain a "spongy" appearance. These holes can be seen when brain tissue is viewed under a microscope.

What causes bovine spongiform encephalopathy? ›

What Causes BSE? Most scientists think that BSE is caused by a protein called a prion. For reasons that are not completely understood, the normal prion protein changes into an abnormal prion protein that is harmful. The body of a sick cow does not even know the abnormal prion is there.

Can humans get bovine spongiform encephalopathy? ›

It also is known as bovine spongiform encephalopathy, or BSE. People cannot get mad cow disease. But in rare cases they may get a human form of mad cow disease called variant Creutzfeldt-Jakob disease (vCJD), which is fatal. Over time, vCJD destroys the brain and spinal cord.

How did mad cow disease start? ›

But the cows developed BSE in the first place because they were fed sheep products infected with a prion disease called scrapie that's been documented in sheep for over 300 years. Sam: Another somewhat well-known acquired prion disease is kuru, which is caused by eating contaminated human brain tissue.

What animals can get bovine spongiform encephalopathy? ›

BSE belongs to a family of diseases known as transmissible spongiform encephalopathies that includes, among others, scrapie in sheep and goats; chronic wasting disease in deer, elk, and moose; and classic and variant Creutzfeldt-Jakob disease in people.

What does the disorder known as transmissible spongiform encephalopathy result in? ›

Transmissible spongiform encephalopathies (TSEs) are a family of related disorders affecting both humans and animals, characterized by a relentlessly progressive and unique spongy degeneration of the brain that results in rapid neurological deterioration and death.

How do transmissible spongiform encephalopathies cause neurodegeneration? ›

The cause of TSEs is believed to be prions, or pathogenic agents that are transmissible and which induce abnormal folding of specific normal cellular proteins (called prion proteins) found in the brain. The abnormal folding induced by the prions leads to brain damage and characteristic symptoms of the disease.

How would humans be exposed to bovine spongiform encephalopathy? ›

Mad cow disease or BSE is a disease cattle can get from infectious agents called prions. The human version, called vCJD, can spread when people eat beef contaminated with brain or spinal cord tissue from an infected cow, or if they receive blood from an infected person.

Which of the following is an example of a transmissible spongiform encephalopathy? ›

Specific examples of TSEs include classical and Nor98-like scrapie, which affect sheep and goats; bovine spongiform encephalopathy, which affects cattle, and rarely other bovidae (nyala, oryx, eland, kudu, and goats), domestic and exotic cats (feline spongiform encephalopathy), humans (variant Creutzfeldt–Jakob disease ...

What is the transmissible spongiform encephalopathy disease called? ›

Transmissible spongiform encephalopathies (TSEs) or prion diseases are a family of rare progressive neurodegenerative brain disorders that affect both humans and animals. They have long incubation periods, progress rapidly once symptoms develop and are always fatal.

What is the bovine spongiform encephalopathy crisis? ›

The BSE crisis led to the European Union (EU) banning exports of British beef with effect from March 1996; the ban lasted for 10 years before it was finally lifted on 1 May 2006 despite attempts in May through September 1996 by British prime minister John Major to get the ban lifted.

What are the examples of prion disease? ›

In livestock and wildlife, prion diseases such as scrapie (sheep), chronic wasting disease (deer, elk, moose), and mad cow disease (cattle) can spread by casual contact or contamination of feeds or the environment.

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