<i>When you have a new son (boys are diagnosed at a rate of 1 in 70) we'll see if you aren't more willing to be critical of one or two studies that are quoted so often it seems like there are 50.</i><p>It's human nature. Kids get vaccines every 6 months (or so it feels). If/when they develop autism, as a parent you are bound to wonder what happened. You look back, and the first thing that you can think of is the needle in your son 6 months prior. Nothing else comes to mind.<p>But that's because we don't have a clue what causes autism. So it's easy to associate any kind of needle, something we don't understand, with the shock. It helps cope.<p>Back on rational grounds, vaccines definitely have +++++++ effect, and you are trying to argue that there might be a tiny (-) somewhere, which is still very much completely hypothetical. Do the math: vaccines still end up way positive.