[chasil]

Scrapie appears to have been the ultimate cause of a human CJD outbreak:

"...in 1996, with the recognition in young people in Britain of a “new variant” of Creutzfeldt-Jakob disease (nvCJD, or the Will-Ironside syndrome) that has since been traced with near certainty to the consumption of tissue from cattle infected with spongiform encephalopathy (BSE), they having in turn consumed meat and bone meal contaminated with rendered sheep carcasses infected with scrapie... There are currently just over 30 verified cases of nvCJD, and four to five new cases a year: whether they represent a small group of susceptible people or are the leading edge of a major epidemic is still moot."

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1114482/