### Chinese: 在军队到来之前，海地自19世纪初以来从未遇到过与该疾病有关的问题。
### English: Before the arrival of the army, Haiti had not had a problem with the disease since the eearly 19th century.
### Errors: There is a minor deletion of character error in the English translation.

### Improved English: Before the arrival of the army, Haiti had not had a problem with the disease since the early 19th century.
