Some physicians believe thimerosal, an organic mercury compound found in trace amounts in one flu vaccine for children and other vaccines for adults, is linked to autism.
Formaldehyde, also found in some vaccines, is a carcinogen, and, according to
VaxTruth.org, exposure can cause side effects such as cardiac impairment, central nervous system depression, "changes in higher cognitive functions," coma, convulsions, and death.Glutaraldehyde, a compound used to disinfect medical and dental equipment, is used in some DTaP vaccinations and exposure can cause asthma and other respiratory issues.
What is vaccines contain harmful ingredients.