a kind of ague caused by protracted isolation in the bush.
- 1839  On this day I was attacked with an ague, or Bush fever, common to settlers in their second or third year.
- 1913  They reached for their guns, then started to shake and tremble as though the bush ague were upon them.
- 1966  To persuade islanders to forsake the comforts of home for the remote forests of Labrador, he now proposes to ease boredom and bush fever by offering volunteers . . . a tidy $400 per man.