Routine vaccinations of large populations have dramatically reduced the incidence of life-threatening diseases such as diphtheria, pertussis, tetanus, and polio. There may be a link between immunizations and autism, cancer, and sudden infant death syndrome. More children suffer moderate to severe symptoms from vaccinations than from the disease those vaccinations are supposed to prevent. Many vaccines contain live viruses which can causes symptoms to occur in those who come in contact with a recently vaccinated child. No studies have been done to test the long term effects of vaccines on the immune system.
Some vaccines contain formaldehyde which is potentially a cancer-causing agent.
Some vaccines contain thimerosal which is a mercury derivative banned by the Food and Drug Administration for use in over the counter drugs. Many parents, however, fall somewhere in between. Here are some options you may want to consider if you fit the latter category. Have your child immunized later than recommended once his or her immune system has had a chance to mature. Have your child immunized for some of the more serious and life-threatening diseases but not for the less severe ones.