In <DBpuDt.3JF at rockyd.rockefeller.edu> Sean Stevens <stevens at rockvax.rockefeller.edu> writes:
>Just out of curiosity-I was under the impression that the mad cow
>disease in Great Britain was derived from cattle feed that was found
>to be contaminated with ground up carcasses of sheep that had scrapie.
>Does this suggest that the transmission was via GI/bloodstream?
This is in fact true. The cattle got BSE from sheep offal. The
transmission must then involove the blood at some point (thanks to Azeem
Ansari for pointing this out to me).
To say however that free prions are floating around in the blood
makes some sense, PSAs are obviously there. But at what concentration?
And how effective would blood-blood transmission route be?
University of Manitoba; Winnipeg, Manitoba, Canada
umfunk15 at cc.umanitoba.ca