Very interesting. I have Lyme.
Autism has also been linked to rainfall, so if parasites are indeed involved - a protozoa, for example - this makes sense.
There is also some talk that exposure to electromagnetic/microwave/radiowave radiation might be involved in the development of autism. 'Think' cell phone and wifi towers and antennas.
Audio Archives - Interviews with Top Researchers:
I think it is very possible that parasitic infections coupled with these exposures equals autism.
Mobile Phone Emissions Increase Worm Fertility: