Some parents have noticed that their autistic children’s behavioral symptoms diminished after a fever. A new study from MIT and Harvard in mice found that an immune molecule sometimes produced during infection suppresses a small region of the brain’s cortex linked to social behavioral deficits.
https://news.mit.edu/2019/explain-infections-fever-reduce-autism-1218
ref - https://www.reddit.com/r/science/comments/ed8kr2/some_parents_have_noticed_that_their_autistic/
origin - https://www.pipiscrew.com/?p=16370 study-may-explain-how-infections-reduce-autism-symptoms