Studies have indicated that as
much as 85% of the North American population has at least one form of parasite, and some authorities believe the true figure may be as high as 95%. 4 Parasites are, in fact, the Center for Disease Control's #1 health risk. 5 You must consider that
no one is immune from parasite infestation.
While the problem of parasites is widespread, it often goes unrecognized. Because parasitic infestation has generally been considered a disease of the tropics, the average physician is seldom a focus in mainstream medical journals or medicals schools.
There are only three nationally reportable parasitic diseases: Cryptosporidiosis, malaria and trichinosis, and apart from the records kept by the CDC, there is little tracking for parasites.
With lack of information and little training, doctors seldom look for parasites as an underlying cause of illness.
http://www.qfac.com/detox/parasites.html