- Brucellosis
- Chance discovery of hepatitis B
- Chance discovery of hepatitis C
- Screening for HIV infection
- Prolonged fever
- Recurrent fever (Borreliosis)
- Filariasis
- Leishmaniasis
- Leptospirosis
- Bacterial Meningitis
- Animal bites
- Malaria
- Plague
- Intestinal protozoan infections (parasitic diarrhea)
- Rickettsial eruptive
- Tetanus
- Human African trypanosomiasis (sleeping sickness)
- American trypanosomiasis (Chagas disease)
- Typhoid