Some of the parts of this article need to be closely examined. After a quick read, I found one particular statement unsettling.
There's no biologically plausible reason why there would be an effect observed in African-Americans but no other race and, more specifically than that, in African-American males. In the discussion, Hooker does a bunch of handwaving about lower vitamin D levels and the like in African American boys, but there really isn't a biologically plausible mechanism to account for his observation, suggesting that it's probably spurious.
A new study has found a link between vitamin D deficiency during pregnancy and autism. It appears women who had low vitamin D levels were more likely to have children with autistic traits.
https://www.yahoo.com/beauty/autism-linked-to-vitamin-d-deficiency-during-pregnancy-192403676.htmlA lot of studies indicate American blacks have lower levels of vitamin d. If you google vitamin d levels in African Americans you can find more links to studies.
Now, unless we assume black pregnant women have the same vitamin d levels as other pregnant women, then clearly there is a difference. Black pregnant women are probably more likely to have children with autistic traits.
http://jn.nutrition.org/content/136/4/1126.fullOf course these new studies do not suggest the MMR vaccine has any connection to autism. I thought I would just post some relevant material which should shed new light on the differences in the prevalence of autism among different races.
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