[giantg2]

There's also the non-typical BSE - or BSE that is spontaneous. Typically this only affects older cattle.

The interesting thing is that for other prions like scapie and CWD are thought to spread through body fluids and feces and be available in the environment for years. But I don't see any of these concerns listed with BSE. Makes me wonder how much is guess work and how much is confirmed about any of them. But I suspect environmental contamination could be a possible vector. If spread through stuff like urine and feces, CAFOs could be a significant source. This could be a problem if they can be infected for years before symptoms arise, while time to market is 18 months.