The diagnosis of autism spectrum disorders is on the rise.  Scientists believe that there are both genetic and environmental factors associated with the development of autism.  The CDC has developed a surveillance system (Autism + Developmental Disabilities and Monitoring Network) to track this increase in cases.
Use the links below and explain the following:
1.The prevalence (DATA) of autistic disorders.
2.Signs and Symptoms of Autism
3.The screening and diagnosis of autistic disorders
4.The possible genetic associations with the occurrence of autism
5.The possible environmental associations with the occurrence of autism
6.Treatment of autism
You may also conduct your own research to write the essay.

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