Weather vaccination is good policy or bad policy, whether it works or not, is a distant second behind whether or not there's accountability for the manufacturer, and quality testing for the product. Manufacturers have no incentive to test the quality or content of their vaccines. For the rest of it, the entire history of vaccination is filled with so much dubious b*******, that any rational review would cause one to ponder whether or not vaccination ever worked. We certainly know that a lot of people had no symptoms of measles. We don't know what the actual outcome of the shots themselves were.