The 1918 flu outbreak was one of the most devastating pandemics in world history, infecting one third of the world's population and killing an estimated 50 million people. While our understanding of infectious diseases and their spread has come a long way since then, 1918 was notably a time when the U.S. practiced widespread social distancing.Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)
