Creutzfeldt Jakob disease is an untreatable, universally fatal disease
that can be contracted by eating parts of an animal infected with
bovine spongiform encephalopathy (BSE or mad cow disease).
An outbreak in England attributed to infected beef prompted
most countries to outlaw feeding rendered cow material to
other cattle because the disease is so easily spread within the same species.
The risk of transmission of BSE to humans who eat farmed fish would appear to be low because of perceived barriers between species. But, it is possible for a disease to be spread by eating a carrier that is not infected itself.
It’s also possible that eating diseased cow parts could cause fish
to experience a pathological change that allows the infection
to be passed between the two species and humans.
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