Each child is unique. Infants reach such milestones as waving bye-bye or smiling in response to a smile at different ages. Discuss any concerns with a doctor so the child can be screened. A child who is identified with an autism spectrum disorder (ASD) can begin getting special help. This may limit the symptoms and help the child lead a fuller life. Also available in Spanish, French, and Polish.
Autism: Be Aware of the Signs
Illinois Early Learning Project