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Why Some Diseases Only Traveled One Direction

CGP Grey

7M subscribers • 6 videos on Rounds

YouTube
  • Recommended by 11 people, in Hacker News, across 9 different months.
  • May be out of date. Uploaded 10 years ago, in an area where guidance changes.

For anyone, no background needed. Education, not medical advice.

13M views10 years ago11 recommendations

Immunity and infectionInfectious diseaseHistory of medicine

CGP Grey explains how animal domestication and dense urbanization in Europe led to deadly plagues that devastated Native American populations.

Why didn't the Europeans get sick when they made contact with the American Indians? Part 2: youtube.com/watch?v=wOmjnioNulo Special Thanks: Brian Mitchell, Danny Z, Joe Pantry, TheAlphaFactor, Duhilio Patiño, Benjamin Morrison, Jordan Melville, Mike Lanier, Martin, Steven Grimm, Alistair Forbes, Lou Rivellini, Tom Maher, Richard Jenkins, Chris Chapin, ChoiceMechanicalDenver.com, سليمان العقل, Andres Villacres, Phil Gardner, Nevin Spoljaric, Tony DiLascio, Robert Kunz, Tod Kurt, Daniel Slater, Sam Pitts, Thomas J Miller Jr MD, Markus Persson, Wenhao Nie, Today I Found Out, Patricio Fons, Mark Govea

Why it's here

11 people recommend this

What people say. Highly recommended for explaining how animal domestication and geography shaped the unequal exchange of infectious diseases between worlds.

vinceguidryin Hacker News • Recommends

On “The New China Syndrome: American business meets its new master”

> So any theory of "geographical stunting" would need to explain what changed in the geography after 1492. What changed was technology. Once you have ships going back and forth across the Atlantic, everything changes. Europeans introduced cows, sheep, pigs, chickens. The New World's only domesticable native animal is the llama, which is the main reason why civilizations sprung up in Central and the northern parts of South America, that's where llamas were. Now, to the Europeans, with vastly superior farming technology, the Caribbean and North America were veritable cornucopias of geopolitical possibility. Islands sheltered plantations. Europe could project real power only very closely to the…

valarauca1in Hacker News • Recommends

On “Barack Obama: America Will Take the Giant Leap to Mars”

>Indians had no trouble crisscrossing America Well yeah there weren't any human infectious illness where... there aren't any humans. This video explains the history of man kind's infectious illness very well link to this video

partycoderin Hacker News • Recommends

On “Native Intelligence (2005)”

I recommend the following video by CGP Grey, largely based on the book "Guns, Germs and Steel" by Jared Diamond: link to this video Now, history doesn't give a lot of merit to natives. The largest battle in the Americas, the siege of the Aztec capital Tenochtitlan, was won with the help of 80,000 to 200,000 Tlaxcalan natives, which amounted for 99% of the infantry used.

squirrelicusin Hacker News • Recommends

On “Germs and ancient migrations help explain our world of 'haves' and 'have nots'”

I remember being struck by his anecdotes of Papua New Guineans seeming just as smart as anyone else as supposed evidence of... What exactly? I don't think Neil Diamond is wrong but it's kind of baby's first reading on the differences between groups in the world. I think CGP Grey does a great job at communicating the actual meat of Guns, Germs, and Steel here link to this video

reallydudein Hacker News • Recommends

On “How a 6k-Year-Old Dog Cancer Spread Around the World”

CCP Makes a pretty good case regarding livestock - link to this video America did offer a new disease that ravaged Europe. Syphillis.

majewskyin Hacker News • Recommends

On “Coronavirus Mutants Are Spreading Fast”

…to these animals the opportunity to jump over to human hosts, for which they may be more dangerous than for the original host animal. For more details on this point, I can recommend this video on why the native Americans were killed by diseases imported by the European conquerors, but the conquerors didn't bring any deadly diseases back to Europe: link to this video…

Hokusaiin Hacker News • Recommends

On “Vikings lived in North America by at least the year 1021”

CGP Grey has a great video about this topic: Americapox: The Missing Plague - link to this video TL;DR; You need big cities to keep plagues ongoing.

seph-reedin Hacker News • Recommends

On “Evidence for European presence in the Americas in AD 1021”

CPG Grey has a great video on this exact subject: link to this video In short, you need cities to develop these types of viruses. Cities where the virus can just keep killing, without ever hitting a dead end.

krrrhin Hacker News • Recommends

On “Evidence for European presence in the Americas in AD 1021”

If a disease native to the Americas emerged and became endemic, it would have infected Europeans when they arrived. There’s a good CGP Grey video on this called Americapox. link to this video

bigmattystylesin Hacker News • Recommends

On “How the ‘black death’ left its genetic mark on future generations”

Expanding on this, CGP Grey had this amazing video ( link to this video ) of why European diseases in the Americas were so bad on the people that were already here when the two worlds met but you hardly heard of Europeans getting any super contagious illness from the people living in the Americas. Meaning European genomes had some adaptations (as well as antibodies?) from dense and unsanitary living, as well as animal farming in European prior to contact whereas that type of living setup was rarer in the Americas.

akerl_in Hacker News • Recommends

On “FDA Approves First Oral Treatment for Postpartum Depression”

link to this video is a good watch here, if you're curious why Europeans didn't catch reciprocal plagues when traveling to the Americas. Spoiler: it's what the adjacent comment said, the Americas didn't have the factors for plagues.

u/_SilentHunterClinician communityin r/epidemiology • Mentions

Zoonotic diseases and colonialism Hi, everyone. I'm usually a lurker here, but wanted to post this and ask your thoughts. This (link) is a video by CGP Grey, an educational YouTuber, explaining the theory from "Germs, Guns, and Steel" about why the plagues brought from Europe to Pre-Colonial North America were so one-directional (i.e., why there were not a swath of plagues brought back to Europe). Much of the discussion on r/cgpgrey goes into how this theory and its author are disliked by many in the historical community and on r/history, but I wanted to throw it here and see what the epidemiologically-minded think. I don't know enough to have an informed opinion, so I'm very curious…

jack9in Hacker News • Mentions

On “School Is to Submit”

> the primary reason for greater productivity of European settlers compared to native inhabitants of Americas would be culture More likely, simple domestication. The "culture" of cities are born of the variety of euro-domestication. Horses, Sheep, etc. ( link to this video )

bigbugbagin Hacker News • Mentions

On ““Alcohol and caffeine created civilization””

Cholera only existed in the old world and is a byproduct of animal domestication and urbanization1. 1: link to this video

LeifCarrotsonin Hacker News • Mentions

On “Farming gave us salmonella, ancient DNA suggests”

Yes. Two other sources for this are the book Guns, Germs and Steel by Jared Diamond, 1 and the video Americapox by CGPGrey. 2 1: link 2: link to this video

slavik81in Hacker News • Mentions

On “Time to Ban Wet Markets”

…e 2:00 mark. I think they make an excellent case for strictly regulating, or even outright banning wet markets. Long ago, Europe had the same problem. The cities were full of wet markets, and were basically the perfect conditions for creating new plagues. There's a nice CGP Grey video on this, "Americapox: The Missing Plague" 2. 1: link 2: link to this video…