A pilot study from a couple of months ago showed increased risk of morbidity among vaccinated children as compared to unvaccinated. You might be forgiven for assuming that regularly studies are done to compare the health of vaccinated children to unvaccinated, but in reality that has never been publicly done until recently.

http://www.cmsri.org/wp-content/uploads/2017/05/MawsonStudyHealthOutcomes5.8.2017.pdf