What Should You Know?
ASDs are a group of developmental disabilities that can cause significant social, communication and behavioral challenges. CDC estimates that an average of 1 in 150 children in the U.S have an ASD. CDC is working to find out how many children have ASDs, discover the risk factors, and raise awareness of the signs.
Popular Links
Milestones Video
See developmental milestones that children should reach.
Prevalence Podcast
Learn about prevalence of ASDs.
Autism Quiz
How much do you know about ASDs? Test your knowledge.
Free Materials
Order, download, and print fact sheets, milestone checklist, posters, a growth chart, and more.
Contact Us:
- Centers for Disease Control and Prevention
- National Center on Birth Defects and Developmental Disabilities
- Division of Birth Defects and Developmental Disabilities
- 1600 Clifton Road
- MS E-86
- Atlanta, GA 30333
- 800-CDC-INFO
(800-232-4636)
TTY: (888) 232-6348
24 Hours/Every Day - cdcinfo@cdc.gov
