you might also be interested to know that in the experience of Natural Hygienic Doctors, parasites/worms and so on, can only thrive and survive in a bodily medium that supports them: that medium they referred to as internal toxemia, not only of the bowels/colon but also of the body generally.
They learnt from experience that the quickest and most expedient method of eliminating total body toxemia, of both endogenous and exogenous origins, was thru water-only-fasting.
No toxemia means that parasites of all kinds would not have the bodily medium to survive and thrive, and therefore would die in situ, and then be expelled from the body by its varying organs of elimination.