Some vaccines have been shown to be more harmful, even lethal, than the diseases they are used to "prevent." Recently, attenuated yellow fever vaccine was found to be 5 times more likely to harm, and 12 times more likely to kill, than the natural yellow fever infections that only rarely occur in the wild.
One of the primary pro-vaccine arguments is that vaccines can prevent cancer by preventing viral infections. But do viruses truly cause cancer and, if so, could the vaccines, rather than being preventative, be the cause?
What do we really know about vaccines? What does the science reveal about the assumptions that drive millions to inject their children with dozens of vaccines?