Well, I'm no expert and I'm sure there's a lot of information about it on the internet, but as far as I understand it, it's a neural virus that affects the brain, causing the animal to go into spastic convulsions and frothing from the mouth (don't know the english word for it on animals) The only chance a human can obtain it, is by eating infected meat. This would be cheap meat, because the 'brain' part of the cows aren't used in the usual priced meat-parts, like steak and such. it's the best I can do on the subject for now, sorry. But I do know it doesn't spread as fast as Chicken-plague or Pig-plague, which spreads like wildfire.