...because we needed one. A discussion broke out on this thread, and while I'd like to continue it, I don't want to derail the topic anymore. I think Densetsu, or someone else with a background in medicine would be able to respond to this more specifically. That being said, forgive me for being somewhat skeptical. Can doctors make mistakes? Absolutely, but they are also trained professionals with years upon years of experience and rigorous study. You worry for you child, I can sympathize, but that can lead to rash judgements and irrational leaps. There may have been other factors at play that you haven't considered. (Not to mention Wolvenreign's point about anecdotal evidence - those articles are well worth reading.) These incidents you're citing are extremely rare or misrepresented by the anti-vaccine community. Are there risks? Sure, but they're unbelievably remote. Your child is much, much more endangered by the diseases and ailments they're exposed without vaccination. You scoffed at the Wiki before, but it truly has great, cited data on the subject. Love and hysteria can go hand in hand. Good intentions doesn't necessarily equate to rationality and clear-thinking. I should know. I don't have children of my own, but I understand the mindset. My younger brother was born severely Autistic; even to this day he is nonverbal. He has to live in a residential home 45 minutes from our house because we just couldn't take care of him on our own. My mother jumped on the anti-vaccine bandwagon for quite awhile. She's normally a smart, rational person, but even she bought into it. I think she just wanted some explanation, something to pin the blame on, for how this could happen to her. "Shitty luck with genetics" just wouldn't do. So I get the mindset, I really do. I can only thank my lucky stars that I never get sick from any of the vaccinations I missed (mercury was her big sticking point, and she would refuse any vaccination with even a hint of it). But it scares me to think that I could have gotten sick, and it scares me even more to know that people are getting sick - many of whom are children with no say in the matter - because of this. It scares me to know that celebrities like Jenny McCarthy are throwing millions upon millions of dollars at campaigns built around misdirection and half-truths. And it scares me that we're seeing whooping cough and other such ailments on the rise again. Do they mean well? Of course, but that doesn't make it any less ignorant or, potentially, deadly. You want what's best for your child, I understand that, but crusading against windmills will do nothing for him.