Not really a tin foil hat situation, it's just potential way it could spread, you can have a virus or bacteria living somewhere, and that place is disturbed, either naturally or through human contact, and then it releases it. Not really sure if that's what happened though, but something happened to make it come out and spread so suddenly out of nowhere. Ebola was especially bad. Not sure how they're doing with that now, they don't really talk about it much so guess they must have gotten it under control. Wonder if they ever found the actual cause, like where it came from so that it spreads so fast so suddenly, if it really is as old as some people say.