Vaccines have done more to improve the health of humankind over the past century than almost any other technology. In the United States, vaccines have recently become a victim of their own success by creating a populace that has largely not seen the ravages of vaccine-preventable diseases first-hand. While vaccines certainly have shortcomings and there exist legitimate concerns about vaccine safety, much of the current anti-vaccine movement ignores the simple, undeniable fact that VACCINES CAUSE ADULTS. This image was created without copyrighted material and can be shared freely without permission.