Do Those Vaccine Shots Really Cause Autism

by beagooddad on April 28, 2008

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Another post on mercury and autism. It must be something in the water.

Anyway, I read something that I found interesting that sent me to do some light research. By light I mean browsing the Wikipedia. How is that for scientific?

Anyway, let’s first start with why people think that vaccine shots cause autism? Thiomersal is a compound (49% mercury by weight) used as a preserative in “vaccines, immunoglobulin preparations, skin test antigens, antivenins, ophthalmic and nasal products, and tattoo inks.”

From that same wiki article, I learned that in 1999 they started phasing the thiomersal out of the vaccines, especially for kids under 2, because of concerns on how long it takes the body to rid itself of the mercury after the vaccines. Since that decision, research has indicated that the ethylmercury (which is used in the preservatives) actually clears from the body much fast than the methylmercury that was used in the study that caused the concern. Just this year, they found that “the half-life of blood mercury after vaccination averages 3.7 days for newborns and infants, much shorter than the 44 days for methylmercury.”

So the theory of vaccines causing autism was pretty much dispelled.

On Friday, I was looking around the internet for something to write about and found this article about autism and the environment.

At the bottom of the first page of that article, it says:

Every existing study that has failed to find a link between thimerosal exposure and autism has looked at disease rates in vaccinated children without regard to their individual metabolism. To properly investigate the role of mercury-containing shots in a vulnerable group, researchers would have to compare autism rates in children with the same type of vulnerability. This has not been done.

On the second page, there is this:

The metabolic profile in the James study children manifests as a severe imbalance in the ratio of active to inactive glutathione in autistic children, compared to a group of healthy control children (James 2004a, 2004b). Glutathione, a potent antioxidant, is the body’s most important tool for detoxifying and excreting metals.

So according to this study, there might be a group of people who are missing something that most people have that helps them remove things like mercury from the bloodstream. According to the article, infants have lower levels in gluthathione than older people anyway.

So while this might be something to extend the life on the thiomersal in the vaccine shots causing autism beliefs but would still fail to answer the question about why the rate of autism seem to still be rapidly increasing.

Maybe the increased exposure to environmental/dietary mercury is causing even greater harm to people born with less gluthathione…or maybe more people are being born with or losing the ability to produce gluthathione. Or, and this is probably even more likely, autism is caused by any subset of a ton of different things and each person will become autistic for different reasons.

So, plenty of things for the researchers to research.

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