swampfever

noun
UK /ˈswɒmpˌfiːvə/
US /ˈswɑːmpˌfiːvər/

A sickness you can get from mosquito bites in wet, muddy places.

The doctor warned travelers to take medicine so they would not catch swamp fever.


OTHER MEANINGS

2. A serious disease spread by mosquitoes in tropical regions.

Many soldiers in the old fort came down with swamp fever.

3. A feeling of tiredness and low energy blamed on hot, humid surroundings.

After a week in the sticky delta, he joked that he had swamp fever.

4. A fictional illness used in stories about muddy, dangerous lands.

In the adventure game, swamp fever slows your character down.