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 | | According to the 2000 report, Canada carried out passive surveillance, namely testing "every cow over one year of age exhibiting central nervous system signs suggestive of BSE submitted to a laboratory or presented at an abattoir brains of bovines reportedly exhibiting neurological symptoms". |
 | | The size of the adult cattle population (over 24 months of age) in Canada is, according to the 2000 report, approximately 6.0 million. |
 | | The 69 imported animals that were slaughtered or died before 1993 [no rendering involved?] carried a certain risk of being infected with the BSE-agent, in particular those that were imported in 1988 and 1989 [the recorded peak of the UK outbreak]. |
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