The Insanity Virus
Schizophrenia has long been blamed on bad genes or even bad parents. Wrong, says a growing group of psychiatrists. The real culprit, they claim, is a virus that lives entwined in every person's DNA.I'm not sure of that, but I do approve of the infection/autoimmune theory in general...
If you get to the end of the article, they conclude this:
One might expect that the disease would be associated with genes controlling our synapses or neurotransmitters. Three major studies published last year in the journal Nature tell a different story. They instead implicate immune genes called human leukocyte antigens (HLAs), which are central to our body’s ability to detect invading pathogens. “That makes a lot of sense,” Yolken says. “The response to an infectious agent may be why person A gets schizophrenia and person B doesn’t.”