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Subjects
- Southeastern United States[remove]40
- Yellow Fever -- prevention & control6
- Topography, Medical4
- Quarantine3
- Southwestern United States3
- United States3
- African Americans2
- Black or African American2
- Communicable Disease Control2
- Hookworm Infections -- prevention & control2
- Medicine2
- Midwestern United States2
- Military Medicine2
- Mortality2
- Public Health Administration2
- Quarantine -- organization & administration2
- Sanitation2
- Travel2
- United States.2
- Yellow Fever2