https://www.npr.org/sections/health-shots/2012/10/16/162670836/wiping-out-polio-how-the-u-s-snuffed-out-a-killer
Boston Children’s Hospital Archive.
In 1952, the polio epidemic reached a peak in U.S.: almost 58,000 reported cases and more than 3,000 deaths. Boston Children’s Hospital Archive via NPR.