Related Clues:
- 700-mile African river
- Fever-causing virus
- Virus causing reversion in a part of the ear
- Infectious fever
- Congolese river - serious virus disease
- Deadly virus named for a river
- Congo River feeder
- Part of the border between the two Congos
- Virus that arose in the Congo
- Virus that inspired 'Outbreak'
- Disease named after a Congolese river
- Tributary of the Congo
- Dangerous virus
- Menace named after an African river
- Source of virus upsetting key part of brain