> dear q and a board i have a few
> questions about mad cow desease
> where is the disease common what
> type of disease is it what is the
> effect of this disease on the host
> and the method please answer my
> question for my question from
> jeremy Mad Cow originated in Great Britain in the 80's. It was spread by feeding bovine slaughterhouse byproduct to other bovine. The incubation period to symptoms is up to 7 years. This resulted in undetected spread over a large area including other parts of Europe. Transmission rate to people is relatively as disease go considering millions of people ate tainted beef before anyone knew there was a problem. Bovine byproducts are not reused in feeds for bovine anymore(since 1996 in US), so the disease among cattle and humans will become very rare very soon. Less than 200 people worldwide contracted the disease(always fatal). To contrast consider that ever year several thousand people die from liver failure caused by over the counter pain killers from the ibuprofin family.
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