[TheNext]

Yes, vaccines are the most significant medical advance in history

* cough * vaccines * cough *

o Discovery of germs
o Repairing accident bodily damage
o Discovery of the Insulin Fast cycle

[exDemMom]

I did not say that vaccines were the only significant medical advance, but that they were the most significant one.

Among the many medical advances, only vaccines deliver so much benefit for so little cost.