Worms cure Crohn's disease

I heard about this a few months ago then it came up in the news again recently. A scientist hypothesized that our ultra clean environments might be

causing Crohn's disease. A California man successfully treated himself for Crohn's by infecting himself with worms. 

What if something like this worked for Type 1? That our lives are so clean that the immune system attacks the body instead of invaders and that Type 1 could be cured like this? No drugs or transplants. Just a simple parasite.