When Cities Were Cesspools of Disease | Nat Geo Explores

Cities of the 19th century were breeding grounds for disease. Find out how poor living conditions played a role and how the discovery of the germ led to public health reforms still seen today. ➡ Subscribe: http://bit.ly/NatGeoSubscribe 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: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta When Cities Were Cesspools of Disease | Nat Geo Explores https://youtu.be/hKKzUcqZgMY National Geographic https://www.youtube.com/natgeo