Subjects
- Disease Notification1
- Disease Outbreaks1
- Disinfectants1
- Disinfection1
- Epidemiologic Methods1
- Federal Government1
- Hygiene1
- Local Government1
- Malaria -- prevention & control1
- Mexico1
- Military Medicine -- methods1
- Ontario1
- Peru1
- Public Facilities1
- Public Health1
- Public Health Administration1
- Puerto Rico1
- Quarantine -- legislation & jurisprudence1
- Quarantine -- organization & administration1
- Railroads1