Genes: Francis Jennings, The Invasion of America (1975:22)
“...the Europeans’ capacity to resist certain diseases made them superior, in the pure Darwinian sense, to the Indians who succumbed.”
“smallpox was smallpox...the Indians on the north [bank of the Rio Grande] had as little biological immunity to this epidemic scourge as the Aztecs had.”
Must differentiate genetic vs. lifetime immunity.