The “problem” with vaccines? They so effective at preventing deaths that they create generations of people that question whether disease was a problem in the first place because they have never experienced the horrors of a world without vaccines.
And, they could resolve this by just walking through an old cemetery.
Or ask someone my age: my parents shipping us children out of Dublin for the summer(s) when polio threatened.
Most of us (I have a lot of siblings) had a classmate who wore calipers.
