They didn’t have densely packed cities full of humans living alongside animals.
You need humans living alongside animals for new plagues to START. The Native Americans didn’t have animal husbandry, so they had no source of exciting new viruses like the Europeans did. Once the Europeans landed, they pretty much immediately infected the natives they encountered and then old world diseases especially smallpox burned through any settlement it encountered.
That’s why European diseases killed the fuck out of America, but there was no Americapox that similarly decimated Europe.
they had plenty of dense cities…hence the cities decimated by old world plagues…
Read this sentence again:
You need humans living alongside animals for new plagues to START. The Native Americans didn’t have animal husbandry, so they had no source of exciting new viruses like the Europeans did. Once the Europeans landed, they pretty much immediately infected the natives they encountered and then old world diseases especially smallpox burned through any settlement it encountered.
That’s why European diseases killed the fuck out of America, but there was no Americapox that similarly decimated Europe.