I am on the fence about Vaccination. Some thing simular happened to some one close to me. Just to sum everything up. He was a very smart an active baby. Reached every milestone before he was suppose to. At the time I was to young to understand but I did notice the difference. He went from saying many words, laughing, playing to barely cracking a simile or even noticing you at all. Eventually he said nothing. Years went by and not a word.

Loud noises sent him into a panic. He was a different person all together. We treated him no differently an at time got frustrated with him because we didnt know. Once our parents sat us down an told use he had Autism thing started to come together. From that day on issues like this opened my eyes. It wasnt until I turned 18 that I found out more on his issues relating to the vaccination.
(It makes me wonder if he didnt have that vaccination would his life be different? Would he be getting bullied or made fun of in school because hes autistic? Would people still be taking advantage of him knowing that with certain issues he fully doesnt know better?)
Just do your research or what ever you feel is best. In reality you cant do much because if you plan on enrolling your child in school there vaccinations has to be up to date.