Prof. Irva Hertz-Picciotto discusses possible causes of autism, a pervasive
developmental disorder defined by lack of social reciprocity and
communications skills combined with repetitive behavior. In the U.S., 1
in 88 children have autism. In California, autism prevalence increased
600% from 1990 - 2001, partly by better detection. Both genes and
environment contribute to autism. Exposures of concern include
environmental chemicals, microbes such as rubella, fertility treatments,
and medications.
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