Level 1 autism symptoms in 1 year old July 8, 2019 16 32 64 128 Level 1 autism symptoms in 2 year old Level 1 autism symptoms in 5 year old Level 1 autism symptoms in 4 year old Level 1 autism symptoms in 3 year old Level 1 autism symptoms in 7 year old Autism in 17 month old Autism signs in 1 year old Autism symptoms in 9 months Mild autism 2 year old