A Shot in the Dark S01E08 - Pertussis and Definition of Insanity

The definition of insanity is doing the same thing over and over again and expecting different results. And a perfect illustration of this is the pertussis vaccine that is so ineffectual it seems in some cases, only vaccinated kids end up with whooping cough. Candace also torches the notion that the vaccines aren't working because healthy, unvaccinated people aren't taking it.