CPHA Canvax

"Thimerosal is a mercury based substance that has been used as a preservative in vaccines. It breaks  down to ethylmercury which is rapidly excreted in the stool. This is different from methylmercury which enters the body primarily through the consumption of contaminated fish (e.g. sword fish, tuna, king  mackerel, and shark) and phenylmercury which is used as a fungicide in agriculture.These forms of mercury build up in the body and are not cleared as effectively asethylmercury. Methylmercury and phenylmercury have been shown to cause neurotoxicity as they cross the blood brain barrier and the placenta. Ethylmercury has been shown to do neither of these". - Thimerosal Information for Nurses

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Thimerosal Information for Nurses

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Background Knowledge



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Vaccine Ingredients


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