>From: Martin Ackland <ecossens at ecossens.demon.co.uk>
>-- Can anyone explain to me why there is more concern about BSE causing
>CJD than scrapie.
For some reason the scrapie agent seems very bad at jumping species, although
it is probably where BSE originated from. However, once it
changed/evolved/mutated into the BSE form it seems much more able to jump
between species. I think the present species count infected from BSE
infected cattle/beef is over 30 now.