As JB points out there have been studies on one vaccine and one ingredient. Also correctly stated, the MMR-II has neither aluminum or thimerosal; though it does contain both WI-38 human diploid lung fibroblasts (derived from a caucasian karyotype is 46,XX; normal diploid female, G6PD is isoenzyme type B) and recombinant human albumin. And in the MMRV (ProQuad) or MMR-II plus V (Varivax) cases there is also included the MRC-5 cells (derived from a caucasian karyotype is 46,XY; normal diploid male. G6PD isoenzyme is type B).

The disclosures of Dr. William Thompson’s does bring to light the need to closely examine the effects added mutagenic compounds have on vaccine activity among a diverse range of patients. Seeing how the MMR is showing greater risk to males in general and significantly greater risk to black males, the possibility that the added genetic is playing a major role in the autism causation question can not simply be dismissed or ignored.