Today, in labs and clinics all over the globe, the search for a COVID-19 vaccine is moving incredibly fast. On this edition of ST, we offer an interesting and optimistic account from the vaccine-related annals of American history as we revisit a 2015 interview from our archives. At that time, we spoke with Dr. Charlotte DeCroes Jacobs about her biography, "Jonas Salk: A Life." The book also offers a fascinating cultural hitory of polio in the US.