J.S.
There have been many studies linking vaccines to autism as well. Not saying it causes it, but the toxins in the shots at the levels they are given can promote it in children already linked to it in any way. It may be the same for other things, but regardless a double dose can't be good toxicitiy wise.
My 8 year old has autism that caused regression in speech and behavior noticed at around 13 months old, about 2-3 weeks after his 5 injections at once deal. Before that he was saying single words (up to 10 words), after that he didn't speak again until age 4 and a LOT of intervention and special education.
I'm not saying don't vaccinate. With the diseases out there, not vaccinating could theoretically harm a child long term. But read up, learn about the shots before hand and read some studies on what ages are better to give what. If I had known I definately would have held off on several shots for my son until he was older and more developed, and no way would I have given him 5 at once. Can't rely on the doctors to tell you either. They don't want you to realize they have been screwing up for years.