Salk vaccine

Mark and I began our conversation by reflecting on historical medical achievements, highlighting the transformative impact of vaccines, especially the Salk polio vaccine, and the remarkable progress in open-heart surgery.
During my lifetime, there have been several seminal breakthroughs in medicine that greatly changed our ability to prevent or treat disease. Part 1, below, describes several of them. I have a good idea of what some of the next ones will be.