A study of the disease associated with genes of the HLA system has shown that this genetic complex can be responsible for a particular genetic susceptibility, predisposing to various diseases characterized predominantly by immune-system pathogenesis. The observation that many vaccines use Thimerosal as a preservative, for which we do not have clear dose-response relationships and whose toxic effects take the form essentially of neurologic symptoms, not the least of which are symptoms of the purine pathway of the innervation of the digestive tube, leads us to consider that in 66% of cases there was obstinate constipation and in 31% there was proctic symptomatology with emission of mucus and blood.

Conclusion
All the patients observed presented various physical problems. The various types of CNS pathology could be due to a delatentization of preexisting autoimme damage by viral DNA. It has been observed that the “cleaner" the species, from the virologic or microbiologic point of view, the more likely it is to present autoimmune conditions of the CNS and other apparatuses. The results indicate that autoimmune pathology is more frequent in countries where vaccination is more widespread, i.e., in countries defined as "clean." With this study, and with the individualization of alleles such as A3 and DR7, in the presence of viral DNA, it would be possible to define the subjects at risk of an autoimmune pathology from vaccination. The action of thimerosal used as an excipient in vaccines, and whose toxicity is independent of thedose administered, could demonstrate the possibility of changes in the aminoacids of the molecules which preserve the antigen.

This type of study could even be utilized to individualize the etiopathogenesis of other types of autoimmune pathology.