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Subjects
- Disease Outbreaks[remove]9
- Yellow Fever4
- Philadelphia2
- African Continental Ancestry Group1
- Brazil1
- Caribbean Region -- epidemiology1
- Chickenpox1
- Cholera1
- Climate1
- Death1
- Environment1
- History, 19th Century1
- Medicine1
- Mortality1
- New Orleans -- epidemiology1
- Paris -- epidemiology1
- Philadelphia -- epidemiology1
- Sanitation1
- Scotland1
- Smallpox -- epidemiology1