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Subjects
- Yellow Fever[remove]280
- Disease Outbreaks80
- Epidemics28
- Philadelphia -- epidemiology26
- Mortality21
- Philadelphia15
- United States15
- Mosquito Control13
- Brazil12
- Epidemiology12
- Diagnosis11
- New Orleans11
- New York City11
- Malaria10
- Relief Work8
- Communicable Disease Control7
- Medicine7
- Quarantine7
- History, 18th Century6
- Yellow Fever -- therapy6