It has been claimed by some that a [[mercury]] preservative used in [[vaccines]], thimerosal, is the cause of injury in many recipients, including a cause of increase in autism rates.<ref>[http://209.85.141.104/search?q=cache:952MmAWeCOsJ:www.jpands.org/vol8no1/geier.pdf+jpands&hl=en&ct=clnk&cd=2&gl=us&client=firefox-a Thimerosal in Childhood Vaccines, | It has been claimed by some that a [[mercury]] preservative used in [[vaccines]], thimerosal, is the cause of injury in many recipients, including a cause of increase in autism rates.<ref>[http://209.85.141.104/search?q=cache:952MmAWeCOsJ:www.jpands.org/vol8no1/geier.pdf+jpands&hl=en&ct=clnk&cd=2&gl=us&client=firefox-a Thimerosal in Childhood Vaccines, |