The detection of significantly increased autoantibodies to glial fibrillary acidic protein and to neuro-axon filament protein in autistic patients, as well as a particular association between the elevated levels of serum measles antibodies and human herpesvirus-6, with brain autoantibodies in autism is also supportive of the viral hypothesis of autoimmune response induction of ASD [90], although it is clear that the subsequent activation of cytokines is the damaging factor associated with autism [11]. Here, GFAP is linked to autism.