Vaccines of my Childhood and Old Age

Today was the first time I felt lucky to be 75 (aside from the joke my friends and I make to consider the alternative). I received my first COVID-19 shot in the gym of the Levy Senior Center in my hometown of Evanston, Illinois. 65 years ago, I remember lining up in the school gym for the polio vaccine. It was strange to think about the similarities and differences of those experiences.