If you want to do some surfing, you might want to have a look at:
Google Dr Mary Megson and Dr Natasha Campbell McBride
I found our Biomed Dr via http://www.biobalance.org.au/
I recently attended a lecture given by Dr Ken Bock on what is happening with the immune system in people with autism, which was extremely interesting and enlightening. You can see a recording of the lecture when he gave it in Singapore,on YouTube in 13 x 15 minute clips. Here is the link to the first clip. The next clip will come up at the end so you can watch them all in order.