- German enterohemorrhagic Escherichia coli O104 infection
- Fever of unknown origin
- Erythema infectiosum
- Echinococcosis
- Ebola hemorrhagic fever
- Danger triangle
- Congenital tuberculosis
- Cold sores
- Chlamydia infection
- Chikungunya fever
- Chagas disease
- Bronchitis
- Bacteremia
- Atypical pneumonia
- Anthrax
- Animal and human bites