Forbes.com reported this week that researches found a gene variant which may help explain why boys are diagnosed with autism 4 times as often as girls.
At this point they don't know enough about the gene variant to do much with it, except to focus more energy towards this area.
We always hear about autism described as a puzzle. I think this makes sense - researchers and scientists are trying to put the puzzle together, but they don't even have all the pieces yet. It's like a 1,000 piece puzzle with pieces scattered across the house (or the world); first we need to find all the pieces, and then we need to figure out how to put them together.