© BBCAutism is more often diagnosed in boys
The Institute of Child Health team says diagnosed children have severe versions of character traits probably shared by millions of others.
The 8,000 child study found even these mild traits could impair development.
Boys - who make up the bulk of autism diagnoses - were most likely to be affected, the US journal study found.
Scientists have understood for some time that the "autistic spectrum" covers a wide range of children with differing levels of problems, from relatively mild cases to severely disabling problems.
Comment: According to the above article the diagnosed children have severe versions of autism. Such cases, or so it seems, represent only the tip of the iceberg. What is usually overlooked, and this article seems to bring it to our attention, is that probably millions of others share the autistic impairments in a much milder form. This widespread of autistic traits may lead to increase of antisocial behaviours in adulthood. We can only speculate what the real impact of the widespread of autistic impairments on the society is and what is their cause, but the aluminum and mercury included in the vaccines seem to have a causal relationship as described here.