I found this site on the internet.
It’s probably the most inane thing I’ve ever heard of. The person has asthma and there are some (pretty sound) scientific theories out and about that says you can rid yourself of it (and other immunity-related problems) by getting yourself infested with worms. The worm excretes some kind of stuff that makes your immune system weaker.
a) Went to some off-beat area in Cameroon
b) walked around in human feces for two weeks
c) got infested with tape-worm
d) regularily walks about in his own feces to reinfest himself
…or this could be a hoax. What do I know?
Pretty soon everyone wants their own hookworm. Remember where you heard it first. 😛