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Subjects
- Hygiene1
- Hygienic Laboratory (U.S.)1
- Laboratory Personnel4
- Ottoman Empire1
- Physicians2
- Plague1
- Plague -- epidemiology1
- Plague -- prevention & control[remove]61
- Plague -- therapy2
- Protective Clothing1
- Quarantine2
- Rats1
- Rodent Control16
- San Francisco25
- San Francisco -- epidemiology1
- Siphonaptera -- pathogenicity1
- Sweating Sickness -- therapy1
- USSR1
- United States1
- United States. Public Health Service13