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Subjects
- Yellow Fever[remove]301
- Disease Outbreaks81
- Brazil28
- Epidemics28
- Philadelphia -- epidemiology26
- Mortality21
- Philadelphia16
- United States15
- Medicine11
- New Orleans11
- New York City11
- Malaria10
- Public Health9
- Diagnosis8
- Relief Work8
- Mosquito Control7
- Quarantine7
- Epidemiology6
- History, 18th Century6
- Yellow Fever -- therapy6