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Subjects
- Yellow Fever[remove]227
- Disease Outbreaks78
- Epidemics28
- Philadelphia -- epidemiology26
- Mortality21
- Philadelphia16
- United States14
- New Orleans11
- New York City11
- Relief Work8
- Malaria7
- Medicine7
- Quarantine7
- History, 18th Century6
- Yellow Fever -- therapy6
- Plague -- history5
- South Carolina5
- Typhoid Fever5
- Typhus, Epidemic Louse-Borne5
- Virginia5