A
Anonymous
Guest
I thought I had heard last week that the Manitoba cow was "atypical"-- now the CFIA is confirming it...How long are we going to allow this disease to be shipped and spread around the world- especially when they have no clues on what causes or how this strain is spread? As these tests are refined and developed, how many more strains will be discovered?
Looks to me like another good reason to keep quarantines on all live cattle movements- until they get some transmission answers....[/b]
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Investigation Overview
Canada has confirmed its sixth case of BSE. The five previous cases of BSE found in Canada were characterised as being similar to the majority of the BSE cases found around the world; however, this sixth case is a less prevalent strain of BSE which has also been reported in Europe and in the U.S.
With refinement and advancement in diagnostic test methods, scientists have only very recently demonstrated the existence of more than one strain of BSE, although multiple strains are known to occur in both human (CJD) and sheep (scrapie) prion diseases.
This less prevalent BSE strain is more difficult to detect and affects mainly older animals. Of the more than 200,000 BSE cases recorded worldwide, less than 100 are known to have been infected with different BSE strains. There is some speculation that the discovery of these different strains came to light as a result of the enhanced BSE surveillance programs occurring worldwide.
Looks to me like another good reason to keep quarantines on all live cattle movements- until they get some transmission answers....[/b]
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Investigation Overview
Canada has confirmed its sixth case of BSE. The five previous cases of BSE found in Canada were characterised as being similar to the majority of the BSE cases found around the world; however, this sixth case is a less prevalent strain of BSE which has also been reported in Europe and in the U.S.
With refinement and advancement in diagnostic test methods, scientists have only very recently demonstrated the existence of more than one strain of BSE, although multiple strains are known to occur in both human (CJD) and sheep (scrapie) prion diseases.
This less prevalent BSE strain is more difficult to detect and affects mainly older animals. Of the more than 200,000 BSE cases recorded worldwide, less than 100 are known to have been infected with different BSE strains. There is some speculation that the discovery of these different strains came to light as a result of the enhanced BSE surveillance programs occurring worldwide.