What?! Did you even read my post? I directly stated that vaccines aren't 100% effective. Of course we want to increase their efficacy, but it is still an incontrovertible fact that vaccines are already effective and useful. I have no problem with acknowledging that vaccines aren't perfect, that there may be adjuvants that would enhance their efficacy safely, and that we will always work to improve current vaccines. I can acknowledge all that and still point out that there is absolutely no doubt that the vaccines of today work. I didn't finish medical school to be talked down to by an emotionally-overreactive person on the Internet about things I don't even say. This conversation is over. Eit: after reviewing my post, I guess I can see where you assumed I was saying something else. I apologize for the lack of clarity, but I still have absolutely no interest in continuing a conversation with you. This is the statement I took issue with: >So I have doubts about the efficacy of childhood vaccinations. We have just seen people get the measles from people who were vaccinated in their youth. I think people should get their kids vaccinated but we know that vaccinations don't always work perfectly. If I were asked if I felt confident in childhood vaccination in a survey I'd say "no." You made a comment about adults getting measles directly after saying you had "doubts about the efficacy of childhood vaccinations", the implication being that because some people get a disease after being vaccinated that there is reason to doubt the efficacy of vaccines (possibly at large). There is some ambiguity in the phrase "efficacy of vaccines" that is causing this disconnect.