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Subjects
- Quarantine[remove]97
- Cholera -- prevention & control12
- United States12
- Yellow Fever -- prevention & control12
- Ships10
- Communicable Disease Control8
- New York City8
- Yellow Fever7
- Yellow Fever -- epidemiology7
- Emigration and Immigration5
- New Orleans5
- Sanitation5
- Emigrants and Immigrants4
- Italy4
- Mississippi4
- Travel4
- California3
- Epidemics3
- National Board of Health (U.S.)3
- New York3