Miles and Takahashi. American Journal of Medical Genetics
Though causes of autism are considered largely genetic, considerable concern remains that exposure to Rh immune globulin (RhIg), which until 2001 in the United States contained the preservative thimerosal, can cause autism. To determine whether mothers of children with autism are more likely to be Rh negative (Rh?) or to have received RhIg preserved with thimerosal, which is 49.6% ethyl mercury, the authors surveyed families of children with an autism spectrum disorder (ASD) ascertained through a University-based autism clinic considered free of ascertainment biases related to type of autism or severity. Analysis of complete records including the blood group status and RhIg exposure of 214 families showed that Rh? status is no higher in mothers of children with autism than in the general population, exposure to antepartum RhIg, preserved with thimerosal is no higher for children with autism and pregnancies are no more likely to be Rh incompatible.
Abstract with link to Full paper.