mad cow disease has a VERY distinct marker. (it's hard to get to; but it happens in a post-mortem examination of the brain tissue). If most Alzheimer's was mad

mad cow disease has a VERY distinct marker. (it's hard to get to; but it happens in a post-mortem examination of the brain tissue). If most Alzheimer's was mad cow, I guarantee you; we'd know it. (also, symptoms are different). (also, there's really two distinct markers: the physical voids that are formed in brain tissue, which is macroscopic; you can see it with the naked eye, and the very characteristic misfolded proteins, which requires a very powerful microscope to detect).