Visit http://morningcommutepodcast.com/vaccines4 to view the activity and CME/CE information, download the transcript, and complete the posttest and evaluation to earn CME/CE credit. In this episode Dr. Eric Cioe-Pena and Dr. David W. Rosenthal will discuss vaccine history and development. What was the world like before vaccines? Our faculty traces the vaccine story from the eradication of smallpox to the current Covid-19 vaccines.