We already spend approximately $22 million for the NIS (National Immunization Survey), which gives an estimate of the number of children vaccinated. And you thi

We already spend approximately $22 million for the NIS (National Immunization Survey), which gives an estimate of the number of children vaccinated. And you think it would cost nothing to track every single child, instead of statistical sampling? Not only whether they were immunized, but track every single ailment for the a significant portion of their lives, and this will cost nothing? And that's not even getting into privacy issues with health records. Or you could do what the medical establishment has already done. Start with the ailment, and look at the statistics of who has the ailment versus the suspected cause. In this case there's no difference in the rates of autism between vaccinated and unvaccinated children.