infection

The invasion of an organism’s body tissues by disease-causing agents and their multiplication, as well as the reaction by the host to these organisms and/or toxins that the organisms produce. – NCI, U.S. National Cancer Institute, 2021

Excerpt:
This search yielded 13 studies implicating viral infections and viral encephalitis as potential causal factors in the development of autism spectrum disorder. Moreover, 17 studies were identified, suggesting an association of viral reactivation following vaccination. This connection raises important questions about the role of vaccines in the onset of autism.

More
  • December 11, 2025