Philadelphia yellow fever epidemic
- When
- 1793–1795
- Where
- Port of Philadelphia; Philadelphia
- Episodes
- 5
In late summer 1793, yellow fever broke out in Philadelphia, then the temporary United States capital with about 50,000 residents. Between August 1 and November 9, an official register listed more than 5,000 deaths, a toll probably understated, making it one of the most severe epidemics in United States history.
Episodes
- Rush identifies the fever and applies therapies
Benjamin Rush recognized the yellow fever pattern after two weeks of rising cases and treated patients with bleeding and purging, teaching African-American nurses these methods.
- Refugee arrivals and the onset of epidemic
French colonial refugees from Saint-Domingue crowded Philadelphia's port, where the city's first yellow fever epidemic in thirty years began in early August 1793.
- Mortality and the official death register
An official register listed more than 5,000 deaths among Philadelphia's 50,000 citizens between August 1 and November 9, 1793, a total probably understated.
- Civic relief efforts and the Mayor's Committee
A citizens' committee appointed on September 14, 1793 relieved the sick and distressed; Mathew Carey contrasted volunteers' sacrifices with others' selfishness.
- Aftermath: quarantine, philanthropy, and debate
The epidemic prompted Philadelphia's Lazaretto quarantine hospital in 1799, Anne Parrish's 1795 relief society, and later medical debates over contagion and mosquito transmission.
Background and detail
Background. In the spring of 1793, French colonial refugees, some with enslaved people, arrived from Cap Français in Saint-Domingue, present-day Haiti, crowding the port of Philadelphia. There the city's first yellow fever epidemic in thirty years began. Philadelphia was then the temporary capital of the United States, with the government due to return in the fall.
Outbreak and Medical Response. The first two Philadelphians to die of yellow fever in early August were recent immigrants, one from Ireland and one from Saint-Domingue. The medical community did not understand mosquitoes' role in transmitting the disease. Benjamin Rush, who had been a doctor's apprentice during the city's 1762 epidemic, recognized the fever's pattern after two weeks of mounting cases and treated patients with bleeding and purging, teaching African-American nurses these methods.
Toll and Aftermath. An official register of deaths, based on grave counts, listed more than 5,000 of Philadelphia's 50,000 citizens as dying between August 1 and November 9, 1793, so the true total was probably higher. The epidemic's severity made it one of the worst in United States history. In 1795, Philadelphia native Anne Parrish founded the Female Society for the Relief of the Distressed, devoting herself to philanthropy after the epidemic.
People involved
- Benjamin Rush · Physician who recognized the fever's pattern and treated patients
- Mathew Carey · Chronicler who published a 1793 account of the epidemic
- Anne Parrish · Philadelphia native who founded a relief society after the epidemic
Sources
- 1793 Philadelphia yellow fever epidemic Wikipedia, revision of 2026-09-24
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.