I'll start by saying, "Definitely vaccinate!"
That out of the way, I've heard more anecdotal tales of children having bad reactions to vaccines than I feel like studies suggest there should be. The one that stands out most is a case in the small rural county where I live where a girl started showing symptoms of autism at a young age immediately after receiving a vaccine. That could, of course, be coincidental, since that's about when Autism symptoms normally manifest anyway. What sets this one apart is that after several years the family paid out of pocket for an expensive procedure to remove mercury from their by-then 12-year-old daughter's body that insurance wouldn't cover because they said there was statistically no way a vaccine could be involved. The treatment resulted in immediate improvements and an almost-complete recovery in the girl.
It's cases like this, where acting as though the problem is really caused by a vaccine yields a treatment that actually works, that lead me to believe there may be something to this. Add to that the fact that drug companies have the discretion to only publish results from trials that show favorable results. Any link between a vaccine and autism would generally have to come from an independent, government-funded study.
And yet I still say you should vaccinate. Why? I can't cite anything because it's been a while, but when we were first investigating the issue for our own children I remember three things that stood out:
- The statistics show that disease they prevent and the chance to catch it is generally still worse than the possible side-effects. The odds of a vaccine causing autism are much, much lower than the odds your child would catch or propogate a possibly deadly disease without the vaccine.
- The problem is not with the vaccines, but with the preservatives (namely mercury), and even then it's only when you get too many at one time.
- The Mercury-based thimerosal perservative is being phased out, and shouldn't be present at all in the vaccines used for children.
So, always always get the vaccination. But if the doctor wants to administer 3 in the same day, you may want to accept just one of them and politely ask for a short delay on the other two. Come back next week, next month, or even the next checkup and get the others then.