Understand the basics before you submit to fear-based propaganda, says Joseph Mercola.
... Why You Need to Understand Basic Statistics Before Getting a Flu Shot
Some clinical trials are only able to show a meaningful benefit because they focus on relative risk reduction rather than absolute risk reduction. What's the difference? You can find a very simple explanation of relative risk vs. absolute risk at the Annie Appleseed Project web site, but let me sum it up here. Read more