Page 2 - Arch 30 Ani Pnn Autism Is Nota Disease It Part Ofa Range Of Developmental Disorders Known As Autistic Spectrum Asd They Begin In Childhood And Last Through Adulthood Symptoms Usually Appear Around The Age 2 Or 3 Some Associated Delays May Occur Even Earlier Often Can Be Diagnosed Early 18 Months Estimated That Worldwide About 1 100 Children Have This Estimate Represents An Average Figure Reported Prevalence Varies Substantially Across Studies Well Controlled News Today : Breaking News, Live Updates & Top Stories | Vimarsana