alt Hacker News>Hard to catch a disease when it’s always the same 15 people around you, with no communication to the outside world
Traded neolithic goods regularly crossed continents. If an axe head can cross the continent then so can a microscopic disease.
>Hard to catch a disease when it’s always the same 15 people around you, with no communication to the outside world
Traded neolithic goods regularly crossed continents. If an axe head can cross the continent then so can a microscopic disease.
Disease can also be zoonotic. E.g. North America supposedly saw disease spread by wild pigs through the indigenous population before direct contact with colonizing Europeans.