tandor, right now understanding of autism is not complete. So far there are no signs physically such as brain waves, x rays, blood tests, genetic tests, a "look " of autism , or anything that absolutely all autistic individuals have except that today we know it comes from uneven development of our neurology.
There are no standard
"autism treatments" or medications, or therapies that can be administered and be helpful to all autisic individuals. It can't be "cured" but compassionate caretaking and patient understanding, with lots of explanations can help an autistic child to grow and be happy.
Every individual being autistic will have different neurological struggles depending on which part of his sensory systems/ neurological system is affected.
Right now there is not just one gene known or suspected to cause autism, but of millions of genes, the testing so far has revealed hundreds of likely genes working in various combinations to produce varying results.
There are probably far more than 8 kinds of autism, as every single autistic person will be different, with different struggles and weaknesses and different gifts and strengths.
The boy is very fortunate to be diagnosed so young, many helps can be given, and it is obvious that he carries the love of his family, which will be a very great gift indeed. <3