It is illogical and probably impossible to have a human body immune (equipped to fight) all kinds of parasitic worms efficiently because each human body has developed resistances and sensibilities depending on the environment of his ancestors and of his environment and each kind of parasitic worm has also developed strategies and techniques to infect a host, and then not be detected by the immune system cells, and then to feed from the foods the blood of the host, and then to lay eggs and spread them where the human goes.
But nowadays many kinds of parasitic worms (and their larvaes, their eggs) which were not present in all parts of the world are now present in most parts of the world (at least where humans live) because humans immigrate, because humans travel abroad and then come back, because of foods coming from all parts of the world, because of blood transfusions, because of networks of water, because of networks of humans waste (urine/feces), because of pets.
I bet that you probably have no clue what you are talking about and you are just trying to make some money from desperate infected people. Else please show us some proofs or at least more details about what you propose.
If you claim that a human body can be immune to all kinds of parasitic worms, it is as if you say that a human body can be immune to all kinds of external parasites (mosquitos, taons, ticks, fleas, etc...) After years of research and experiments, i have never seen one proof of that, only suppositions by hygienists, and some of them may have died because of a parasitic worms infection...