40 infantile Autistic patients were studied. They ranged from 6 years to 15 years of age at entry. 22 were classical infantile Autism; 18 lacked one or more clinical defects associated with infantile Autism. Of the 22 with classic Autism, 21 responded by gaining at least 2 points in symptoms severity score average (SSSA); 10 became normal in that they were mainstreamed in school and clinical characteristics were fully normalized. Of the 18 remaining, 4 responded to Transfer Factor (T.F.); some to other therapies. After cessation of T.F. therapy, 5 in the Autistic group and 3 of the pseudo-Autistic group reverted but dropped as low as baseline levels.