The Vaccination Controversy

The Vaccination Controversy

The Vaccination Controversy

The controversy in the news is most about a preservative used in many vaccines called Thimerosal. Thimerosal is an organic-mercury (Hg) based compound, used as a preservative in many childhood vaccines, in the past and present. To date, there have been over 165 studies that focused on Thimerosal and found it to be harmful [1, 2]. (A comprehensive list of these studies is shown at

Of these studies, 16 were conducted to specifically examine the effects of Thimerosal on human infants and/or children [3–18]. Within these studies, which focused on human infants and/or children, the reported outcomes following Thimerosal exposure were (1) death [3]; (2) acrodynia [4]; (3) poisoning [5]; (4) allergic reaction [6]; (5) malformations [7]; (6) autoimmune reaction [8]; (7) Well’s syndrome [9]; (8) developmental delay [10–13]; and (9) neurodevelopmental disorders, including tics, speech delay, language delay, attention deficit disorder, and autism [10, 11, 14–18].

However, the United States (US) Centers for Disease Control and Prevention (CDC) still insists that there is “no relationship between [T]himerosal[-]containing vaccines and autism rates in children” [19]. This is a puzzling conclusion because, in a study conducted directly by the CDC, epidemiologists assessed the risk for neurologic and renal impairment associated with past exposure to Thimerosal-containing vaccine (TCV) using automated data from the Vaccine Safety Datalink (VSD) and found a 7.6-fold increased risk of autism from exposure to Thimerosal during infancy [20]. The database for that study was “from four health maintenance organizations [HMOs] in Washington, Oregon, and California, containing immunization, medical visit, and demographic data on over 400,000 infants born between 1991 and 1997.” In that initial study, Verstraeten et al. [20] “categorized the cumulative ethyl-Hg exposure from [T]himerosal[-]containing vaccines after one month of life and assessed the subsequent risk of degenerative and developmental neurologic disorders and renal disorders before the age of six.” They “applied proportional hazard models adjusting for HMO, year of birth, and gender, and excluded premature babies.” The reported results showed that “the relative risk (RR) of developing a neurologic development disorder was 1.8 (95% confidence intervals [CI] 1.1–2.8) when comparing the highest exposure group at 1 month of age (cumulative dose > 25 μg) to the unexposed group.” Similarly, they “also found an elevated risk for the following disorders: autism (RR 7.6, 95% CI = 1.8–31.5), nonorganic sleep disorders (RR 5.0, 95% CI = 1.6–15.9), and speech disorders (RR 2.1, 95% CI = 1.1–4.0)” in the highest exposure group.

Thimerosal has not been removed from childhood vaccinations; it’s still there. The FDA changed the rules so vaccine manufacturers do not have to include thimerosal on the label as an ingredient unless it is used as a preservative. According to the FDA, if thimerosal is used in the manufacturing process but it is not used as a preservative, the vaccine can be labeled “thimerosal-free” when that is not the case. You can read more about this semantic posturing and what it really means for your child here.  The point is, several vaccines given to infants and children still contain thimerosal, including the DTaP vaccine, DT vaccine, Hib (ACTHib, TriHIBit) and Meningococcal vaccine. – See more at: and

My Comments on the Vaccine Controversy

I have heard many stories, some from people I know personally, about perfectly healthy babies who were given vaccinations and shortly thereafter demonstrated neurological symptoms.  One baby died within days, the child of a friend of a friend.  On the other side, one can point to the fact that vaccinations have saved lives worldwide.  But there is a gray area.  A certain percentage of infants, children, and adults do react to vaccinations.  That is a fact.  No one knows exactly why some people react.  It may be a selenium deficiency or a host of other variables.  The concerning fact is that no one knows if their child will be one who is harmed, or if you get a vaccine yourself and will have a reaction. At the very least, parents should have the right to choose for their own children what they deem to be the right thing to do.

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