Filth fever

Filth fever was a sickness characterized by fever and slowness of movement. It was spread by bites from contaminated animals, such as rats or other sewer animals, and could be deadly if left untreated.

History
In the late 14 century DR, filth fever was among the diseases that one could potentially contract from trudging through the sewage of the sewers of Mulmaster.

In the late 15 century DR, a magically animated puppet of Halaster Blackcloak purportedly researched a cure for filth fever in the Arcane Chambers of Undermountain, by randomly mixing harmless substances.

Appearances

 * Adventures
 * Waterdeep: Dungeon of the Mad Mage
 * Organized Play & Licensed Adventures
 * Extermination • Heirloom