Introduction
The impact of viruses on autism has been an ongoing discussion for many years. There has been much talk about in utero exposure and early on exposure to viruses that may increase the risk of autism. Researchers have found that children with autism have a decreased number of T-cells which means their immune system is impaired and unable to fight infection. It is also possible that early exposure to viruses may cause the immune system to create a production of antibodies against the child's own brain which would result in neurological deficits as seen in ASD. Viruses can cause harm to the nerve tissue, thus negatively affecting the nervous system. Viruses can also stimulate an immune response by creating antibodies in order to eliminate the viruses. Sometimes environmental toxins can activate these antibodies. If the immune response is too weak then the viruses may affect the body tissue which causes inflammation. Inflammation is the body's way of fighting an attack, so long term and widespread inflammation (especially in the brain), as seen in children with autism, results in chronically sick children with neurological and behavioral changes. The following viruses may play a role in autism: Herpes Simplex Virus (HSV) 1& 2; Human Herpes Virus #6 (HHV 6); Epstein - Barr Virus (EBV); Measles, Varicella Zoster Virus (VZV), and Cytomegalovirus (CMV). Talk to your child's doctor about testing for these viruses and also see the PANDAS/PANS section for related information.
Related Sites
Autistic Disorder and Viral Infections Description: From the Journal of Neurovirology.
Viral Exposure and Autism Description: News and views on autism research.
Books
Tools
Parent Forums/Blogs
Some forums require you to sign in to Yahoo or Facebook to locate forum names.
Forum/Blog Name: Lyme Induced Autism Family Support Group Description: Sharing info on Autism that is associated with bacteria (Lyme disease and its co-infections).
Forum/Blog Name: Viral Exposure and Autism Description: Questioning Answers - Viral exposure and autism.
Consumer Corner
Community Library
Is Autism Associated with a Viral Infection? by David Kirby Description: Researchers tested blood samples from a "small group of children" with autism and found that 40% of them were positive for XMRV, according to a statement from the Nevada Commission on Autism Spectrum Disorders.
Association of Autism with Polyomavirus Infection in Post Mortem Brains by the Laboratory of Molecular Psychiatry and Neurogenetics University Campus Biomedico Rome, Italy Description: According to Dr. Jeff Bradstreet suspect viruses may be behind chronic inflammation in the brain seen in children with autism.