Autism Spectrum Disorder (ASD) is a spectrum of lifelong developmental disability that affects how a person communicates with, and relates to other people.
Autism Spectrum Disorder includes Autism, Asperger Syndrome and Pervasive Development Disorder. While all people with ASD share certain difficulties, their condition will affect them in different ways and at varying levels. People with ASD have hidden disabilities. Many people, particularly those with Asperger Syndrome, may face real difficulty getting to appointments on their own, coping with change to routine or performing well at interviews.
Autism is a lifelong disability that affects about 1 in 100 Australians.
Source; Autism Spectrum Australia