In the long journeys from Manila to Acapulco, disease was the clingy passenger no one wanted around. But it wandered around the decks, knocked on every cabin, stalked everyone on board—until one day, you woke up, and disease was just everywhere. How could it not be? There was food rotting inside the barrels, slick and moldy woodwork, crew and passengers and officers packed into tight spaces, pests crawling over the meals, the overpowering smell of human waste. And so they came, that grim parade: fever, chills, dysentery, infection, dermatitis, beriberi, the dread scurvy.
How did the ships of the Galleon Trade and the trans-Pacific exchange keep up their good health in those arduous sea crossings? Let’s open the medicine chests and find out.
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