Summary of Supportive Science Regarding Thimerosal & Vaccines
From SafeMinds – November 2010:
As part of the Food and Drug Administration (FDA) Modernization Act, an assessment of thimerosal use in vaccines was conducted from 1997 to 1999. The FDA investigation was unable to locate any clinical studies formally evaluating the use of thimerosal before its initial marketing in the 1930‟s. The only study found was from 1931 where thimerosal was administered to individuals suffering from meningitis. The study was not designed to specifically examine toxicity; no clinical assessments were described nor were laboratory studies reported. In the paper, the authors acknowledge the clinician who treated the meningitis patients was not convinced of its efficacy stating “beneficial effects of the drug were not definitely proven.” Industry scientists noted in 1930 that a “wide range of toxicity and injury tests should be done” but they were not.
Today, the scientific literature is flush with research that documents deleterious effects of thimerosal on numerous organ systems, including the immune, metabolic and nervous, in mammals and humans. These effects may vary depending on the dose, the genetics of the individual, and the timing of exposure. This research strongly suggests that ethyl mercury exposure from thimerosal containing vaccines given to infants or pregnant women has the potential to cause harmful effects.
Therefore, in the interest of precaution, removal of mercury from vaccines given to vulnerable populations is warranted. Actions that lead to removal of thimerosal, particularly given that sufficient supplies of mercury free vaccines are readily available, should be supported.
In addition, all of the recommendations for additional research from the Institute of Medicine Immunization Safety Review report: Thimerosal Containing Vaccines and Neurodevelopmental Disorders, 2001 should be conducted immediately. We note that the 2004 report from the Institute of Medicine in this regard, Immunization Safety Review: Vaccines and Autism, did not fulfill the recommendations from the 2001 report, regarding clinical and biological science, and relied heavily on epidemiological studies containing serious design flaws and conflicts of interest.
This document is a brief summary of recently published science, conducted in the many fields of research recommended in the initial report by the Institute of Medicine in 2001, regarding thimerosal at doses which correspond to levels found in vaccines, or at concentrations that are likely to result from vaccine administration.
A brief summary of research supporting other forms of mercurials and their role in autism, autism behaviors and known biological anomalies have been included, as mercury from all vectors is known to impact development.