Yellow fever breaks out in Philadelphia

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The death toll from a yellow fever epidemic in Philadelphia hits 100 on October 11, 1793. By the time it ended, 5,000 people were dead.
Yellow fever, or American plague as it was known at the time, is a viral disease that begins with fever and muscle pain. Next, victims often become jaundiced (hence, the term “yellow” fever), as their liver and kidneys cease to function normally. Some of the afflicted then suffer even worse symptoms. Famous early American Cotton Mather described it as “turning yellow then vomiting and bleeding every way.” Internal bleeding in the digestive tract causes bloody vomit. Many victims become delirious before dying.