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Subjects
- Rickettsia Infections -- prevention & control[remove]2
- Communicable Disease Control -- methods1
- Japan -- epidemiology1
- Korea -- epidemiology1
- Pediculus -- pathogenicity1
- Rickettsia -- pathogenicity1
- Rickettsia Infections -- epidemiology1
- Rickettsia Infections -- etiology1
- Rickettsia Infections -- pathology1