Why is cholera called Blue Death?

Related questions

1. How many died on the Oregon Trail?
2. How was Oregon acquired?
3. Can a horse run itself to death?
4. How many miles did Pioneers walk in a day?
5. How far can a person travel on horseback in a day?
6. Why did Robert Horton quit wagon train?
7. What is difference between diarrhea and dysentery?
8. How far did a wagon train go in a day?
9. Does boiling water kill cholera?
10. Who traveled the Oregon Trail?

Tags

1. #nicknamed
2. #turns
3. #cholera
4. #fluids
5. #called
6. #period
7. #about
8. #their
9. #person
10. #people
11. #because
12. #dying
13. #incubation
14. #death
15. #treatment
16. #bluish