A CDC-sponsored database showed much higher rates of neurodevelopmental disabilities from mercury-containing vaccines.
Thimerosal exposure in infants and neurodevelopmental disorders: An assessment of computerized medical records in the Vaccine Safety Datalink
Young HA, Geier DA, Geier MR. Journal of the Neurological Sciences. 2008;121:626-631.
“Consistent significantly increased rate ratios were observed for autism, autism spectrum disorders, tics, attention deficit disorder, and emotional disturbances with Hg [mercury] exposure from TCVs [thimerosal-containing vaccines]. By contrast, none of the control outcomes had significantly increased rate ratios with Hg exposure from TCVs.”