Hi there, Nottingham University recently published this study in which they
acheived 100% remission for a small study group of Crohn's patients by
inoculating them
with 50 hookworm. http://gut.bmj.com/cgi/content/full/55/1/136

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It took 45 weeks to get to remission, and some were not able to reduce their
other drugs whilst achieving remission, but this is encouraging for the larger
study
currently underway into this topic at Nottingham.

Coupled with the research by Weinstock at Iowa it is beginning to look very
promising for helminthic therapy. Not just for Crohn's and Ulcerative Colitis,
either. There
are other studies that show it works for asthma and hay fever, and perhaps
multiple sclerosis.

Wikipedia has an entry for helminthic therapy for those interested.
http://en.wikipedia.org/wiki/Helminthic_therapy