"Two Empires Destroyed. Unleashed in the wake of
Spanish conquistadores,
smallpox quickly killed about half the Aztec population. The outbreak then raced
south, killing the Inca emperor and sparking a civil war—further clearing the way for the
Spanish invaders.Jul 15, 2020"
Colonizers brought Old World diseases to the Americas, devastating indigenous populations. Nearly 300 years later the Spanish king ordered an ambitious mission involving orphans, warships, and the first vaccine to fight one of the deadliest of all.
www.nationalgeographic.com
.
The Spaniards had immunity, the natives did not.