PANDAS can see that autism can happen at any time, in response to an illness. This research paper goes further linking any immune stressor to physically changing the brain chemistry/biology to improve your chances at living. You actually avoid human contact and wash more often - on a subconscious level. Manifest as ASD and OCD and others.
You have seen the opposite in mice infected with a parasite, who seem more attracted to cats, - https://www.nature.com/news/parasite-makes-mice-lose-fear-of-cats-permanently-1.13777
"The results are novel, as this sensitive and comprehensive testing has revealed how prenatal and early postnatal immune activation may regulate core behavioral signs associated with ASD and certain other developmental disorders through changes in signal flow between different structural components of behavior-driving neural circuits," said Bolshakov. "These findings may be of a significant translational value, as they provide important clues to understanding the mechanisms of these disorders and potentially their treatment."
How can we be so positive that one way is actually true?
There is PANDAS. It's caught and looks very much like Autism. If you have it you will be diagnosed as Autistic.
Dangerous thinking is assuming you are right, where there is so much we do not know. I do not actually know anything for sure. But I'm willing to be wrong. How many of you are flexible in that thinking?
Is it proven that there are several high risks for autism - specifically genetics, viral stress and bacterial stress, and generally any stressor that acts upon the babies brain?
And anything may cause this. It's only dangerous because people are so scared of having kids with autism. It's that mindset that needs to change. And unfortunately, we cannot have open discussions because of this.
If you are from any scientific background you know that theories are only as good as the research. And guess what they change all the time.
Have a discussion but don't browbeat someone who disagrees. That would be a strong indication you lost an argument. Happy discussions.