In 1925, 20 teams of sled dogs braved the harsh Alaskan winter to carry a package of diphtheria antitoxin over 1000 km to save a small town from a deadly outbreak! Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, D.A. Noe, alexander wadsworth, سلطا الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Justin Lentz ---------- Looking for SciShow elsewhere on the internet? Facebook: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: iditarod.com/about/history/ www.cdc.gov/about/24-7/savinglives/diphtheria/index.html www.cdc.gov/about/24-7/savinglives/diphtheria/campaign.html www.cdc.gov/laboratory/drugservice/formulary.html#dat www.history.com/news/the-sled-dog-relay-that-inspired-the-iditarod www.cdc.gov/vaccines/pubs/pinkbook/downloads/dip.pdf americanhistory.si.edu/blog/2013/08/how-horses-helped-cure-diphtheria.html Images: commons.wikimedia.org/wiki/File:2003_Iditarod_start_in_Anchorage_-_Aliy_Zirkle.jpg commons.wikimedia.org/wiki/File:Alaska_iditarod_route.png commons.wikimedia.org/wiki/File:Antitoxin_diphtheria.jpg commons.wikimedia.org/wiki/File:Engag%C3%A9_mit_einem_indianischen_Hundeschlitten_by_Maximilian_zu_Wied-Neuwied.jpg commons.wikimedia.org/wiki/File:Nome_Alaska_1903.jpg commons.wikimedia.org/wiki/File:Corynebacterium_diphtheriae_Gram_stain.jpg commons.wikimedia.org/wiki/File:StateLibQld_1_119772_Plane_built_by_Qantas_at_Longreach_in_the_late_1920s.jpg commons.wikimedia.org/wiki/File:Robert_Sorlie_and_Iditarod_team_near_Nome.jpg commons.wikimedia.org/wiki/File:Balto.jpg commons.wikimedia.org/wiki/File:Corrie_Mile_9_Landscape_-_Jacob_W._Frank_(8636566476).jpg

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