Why does the CDC refuses to do a study on the health outcomes between vaccinated and unvaccinated populations? It's not because the CDC is afraid of the outcome. It would be a risy unethical study done on children. His reference to a study showing unvaccinated children were seen at a lower rate of frequency in emergency room and outpatient visits, he got that wrong as well. The study found "these children were also more likely to be hospitalized than those vaccinated at recommended intervals". They were treated as hospital inpatients 21% more often than children vaccinated on schedule.