The ABO test shows that people have one of four blood types: A, B, AB, or O. If your red blood cells have: 1  The A antigen, you have type A blood. 2  The liquid portion of your blood (plasma) has antibodies that attack type B blood.
Autism can be detected at age 1 year in some (but not all) toddlers Results of the Pierce study (2011) indicated that it is possible to detect some toddlers showing early signs autism and other delays at 12 months using a simple, broad band screening tool (i.e., the CSBS DP IT Checklist) that takes only 5 minutes for a caregiver to complete.
These medical comorbidities or autism symptoms: Many of these medical conditions are present in infancy, long before communication and cognitive dysfunctions are recognized. Currently, autism can be diagnosed as early as two years of age, however, the average diagnosis is 4.5 years. If comorbid conditions are identified, vulnerable children could potentially be recognized even earlier. Medical comorbidities often appear in clusters with neurological symptoms of delay.