Germ Theory

Often while channel surfing late at night, I'll see an infomercial with some doctor who claims that all ailments are caused by too much acidity in the body. So far, I have always flipped the channel immediately and given it no further thought. Now while web-surfing I found this website which rejects the germ theory of disease and also states that body pH is the problem. http://www.unhinderedliving.com/germtheory.htmlAnyone have an idea how extensive this belief is? Where does it fall on a crackpot scale of 1-10? (my 5-minute assessment ranks it very high on the crackpot scale, but I'm sure there's more to the story)