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In this episode, we’ll tell the tale of how a 19th-century duel led to a medical breakthrough. Chemist Louis Pasteur was challenged to prove that invisible agents (germs) caused diseases, and he did so by using sheep. With the world’s media at attention and 50 sheep at the ready, the science community waited with bated breath for the reveal that would revolutionize medical science and save countless lives. ➡ Subscribe: ➡ Watch all clips of Nat Geo Explores here: About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: Facebook: Twitter: Instagram: How Solving this Medical Mystery Saved Lives | Nat Geo Explores National Geographic
