I know that Austism is a big worry for parents. BUT you just have to ask yourself one question: Would you rather risk Autism or the chance of them catching something deadly? Personally, I would rather risk my child getting Autism, which hasn't been proved that these cause them. It rather is considered to be the same age when children start showing symptoms. I have a 3 year old DD whom we immunized on time for ALL things. Plus, she had the flu shot, b/c of being around other kids alot. I now have a 4 month old DS, who is a preemie, so he is actually 2 months. He has already had his 2 month shots, and will be getting what is called a Synagis shot b/c it helps to prevent RSV. I am NOT thrilled about shots either, but it is why we, as people, can live longer. Way back when, they didn't have this technology, and so a lot of people, and children and babies died! Just due to the fact that they didn't have these available. But, to each their own. I just want my kids to grow up as healthy as possible.