It bugs me when people refuse to vaccinate their kids...I'm not saying there aren't risks (unusual reactions etc.) but the risks associated with getting some of these diseases are much worse. That said, I do wonder if the currently recommended vaccine schedule might be overloading immature immune systems with too many things at once. I'm not knowledgeable enough about pediatrics to say for sure, but I would be interested to know if any research has been done on this and if it might be better to spread the vaccines out more. The discussion about pertussis reminds me, I should ask about getting a booster when I go for my physical this year since I haven't had one as an adult and it sounds like I probably should (especially since I work in a hospital!).