10 Worst Prehistoric Outbreaks That Destroyed Entire Civilizations

10 Worst Prehistoric Outbreaks That Destroyed Entire Civilizations Number 10: Hookworm. You are crouching in the dry, breathless dark of a burial cave in the Brazilian state of Piauí, and the air around you has not moved in thousands of years. The mummified remains before you belong to a child, no older than six, and the bones are wrong in ways that take a moment to fully register.