Disease

For several centuries, people though diseases were caused by wandering clouds of poisonous vapor. We now know that this theory is pretty ridiculous, and that diseases are caused by specific bacteria. But how did we get to this new idea of germ theory? Tien Nguyen describes the work of several scientists who discredited a widely accepted theory in a way that was beneficial to human health.

Watch the video How a few scientists transformed the way we think about disease by Tien Nguyen, that was created with support from the U.S. Office of Research Integrity: http://ori.hhs.gov.