In this video, Amesh Adalja, M.D., discusses the history of vaccination with special attention to the heroic figures who developed this technology. Particular consideration is given to the chain of reasoning leading to the first vaccine, as well as how the germ theory of disease led to a plethora of vaccines that allowed humans to experience a rapid improvement in lifespan and quality of life.

This talk was delivered on Wednesday, July 6, 2016, at Objectivist Summer Conference 2016 in Bellevue, Washington.

Objectivist Summer Conference 2017 will take place in Pittsburgh, Pennsylvania, June 10 – 15. The conference, held at the center of industrial America, will celebrate productive heroes and the heroism of productiveness. We will also honor the 60th anniversary of Ayn Rand’s master work, Atlas Shrugged. Join us for the unique experience of OCON; attend intellectually stimulating sessions with people who share your deepest values. Register today.

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Image: Sean Locke Photography via Shutterstock.com.