Subjects
- Disease Outbreaks[remove]322
- Cholera108
- Yellow Fever77
- India29
- Philadelphia -- epidemiology24
- New York City23
- England20
- Mortality20
- Philadelphia20
- Cholera -- epidemiology17
- United States15
- Meteorological Concepts8
- New York8
- Yellow Fever -- epidemiology8
- Fever7
- London7
- Military Medicine7
- Cholera -- prevention & control6
- Climate6
- History, 18th Century6
