I think I found this article here last month, so probably a repost:

'Scientists have identified 102 gene mutations that can result in autism'

https://www.dailymail.co.uk/health/article-7921309/Scientists-dozens-autism-genes-study-reveals-102-DNA-mutations.html

"Scientists are one step closer to unlocking the riddle of autism after discovering 37 new genes linked to the disorder.

Autism and related conditions such as Asperger's syndrome affect more than one in 100 British children - ten times more than just 30 years ago. In the US, it is one in 68. But despite the rise, the condition is still little understood.

Many autistic people are able to lead relatively normal lives while others require support throughout. The discovery of so many genes which all play a small part in autism may help explain why the disorder manifests itself differently in individuals."