Then why didn't the invading Europeans die from new American diseases in equal proportions? Because old-world livestock lived closer to humans, in larger quantities, for longer, therefore giving Europeans many more diseases to become immune to.
Basically, Europeans had domesticated animals on a much larger scale than a few llamas a few places on the continent. It was deeply integral to the old-world way of life in a way that Native American culture didn't even come close.
Basically, Europeans had domesticated animals on a much larger scale than a few llamas a few places on the continent. It was deeply integral to the old-world way of life in a way that Native American culture didn't even come close.