Go away from the DIS and a debate about this topic comes up and I don't even get to get on until the OP has long since gone. Bummer.
But, just in case op is still out there.
I think you are smart about being concerned about the vaccines. There are two theories about autism and vaccines. The first is that the mmr vaccine has a reaction that causes the autistic tendancies to surface. The second is that thimerisol, in the vaccine, causes the autistic reaction. Thimerisol has been removed from the childhood vaccines in the US. It has not been removed from vaccines totally. It is still contained in flu vaccines and the like. It is still exported to africa as aid, etc.
Facts: mercury and autism share 95% or more of the same symptoms. Thimerisol is a mercury based product, used as a preservative. There is a theory that thimerisol, once injected, either causes mercury poisoning, or, changes its form, to cause mercury poisoning.
Basically, as a child, your body has less ability to pass metals. Some children have to "learn" this ability, and for those who have this genetic difficulty, the body will learn at 3 years or so. Based upon the immunization schedule, and the amount of thimerisol in the vaccinations, children were, in the past, injected with this poison. Most were able to pass it. Some were not. Hence, the mercury posoning and/or autism resulted.
There are genetic cases of autism. i am not addressing those. There are likely cases of autism, or autistic related illnesses, caused by environmental or other factors.
I am only discussing thimerisol related autistic diagnosis. These are different than genetic diagnosis. These are kids, I believe, that had a genetic predisposition to having a difficulty in passing heavy metals. Unfortunately, before their body could develop to the point where they could handle the metal or pass it, they were injected with so much mercury, that they ended up being poisoned, and declared autistic. These are the kids who were walking, talking, playing one day, get a shot, and bam, autistic overnight.
I know that there are studies saying there is no connection. However, the studies that are cited, by the US Govt. were in conjunction and/or funded by the drug companies. (or, the doctors were on the payroll) (It has been a while since I went back to look) There are some scientists that believe a connection exists. Of course, those studies are funded by the opposite side.
We will never know if there is a connection. The one way to know, through a lawsuit, is not available to these folks because the government protects the vaccine manufacturers.
I know it is controversial. I know some people here throw out this theory. But, imho, there is a connection between some cases of autism and thimerisol. I am not a dr, or a scientist. i am just a guy who did some research on the issue in an attempt to address it a number of years ago, but came to the conclusion that drug companies with billions of pounds or euros in profit have a tremendous amount of power.