Autism is a bio-neurological developmental disability that generally appears before the age of 3.

Autism is a bio-neurological developmental disability that generally appears before the age of 3.: "Contrary to claims by vaccine manufacturers touting 'mercury free' vaccines an investigation by Health Advocacy in the Public Interest (HAPI) recently found mercury in all four vials tested. This despite manufacturer claims that two of the vials were completely mercury free. Boyd Haley, PhD, Chemistry Department Chair, University of Kentucky, feels that if mercury can be detected in any vaccine using standard instrumentation, the content should be disclosed in the product insert and manufacturers should not be allowed to call the product 'mercury free.' "