There is evidence of a significant relationship between increasing organic mercury exposure from Thimerosal-containing vaccines and the subsequent risk of PDD diagnosis in males and females.
A Case-Control Study Evaluating the Relationship Between Thimerosal-Containing Haemophilus influenzae Type b Vaccine Administration and the Risk for a Pervasive Developmental Disorder Diagnosis in the United States
David A. Geier & Janet K. Kern & Paul G. King & Lisa K. Sykes & Mark R. Geier; Biological Trace Element Research, (2015) 163:28–38.
In this case-control study of pervasive development disorder (PDD) in U.S. children, cases were consistently exposed to higher levels of thimerosal via infant vaccines at both 6 months of age and 15 months of age, based specifically on Haemophilus influenzae type b vaccines. Differences between exposures in cases and controls were statistically significant at both ages evaluated.
Background data (not reported in print) suggests a strong link between thimerosal exposure and autism.
Methodological Issues and Evidence of Malfeasance in Research Purporting to Show Thimerosal in Vaccines Is Safe
Brian Hooker, Janet Kern, David Geier, Boyd Haley, Lisa Sykes, Paul King, and Mark Geier; BioMed Research International, Volume 2014, Article ID 247218, 8 pages.
This review article shows methodological flaws in six separate CDC studies claiming that thimerosal does not cause autism. In three specific instances (Madsen et al. 2003, Verstraeten et al. 2003 and Price et al. 2010) evidence of malfeasance on the part of CDC scientists is shown. Background data (not reported in print) from these three publications suggest a strong link between thimerosal exposure and autism.