Sewer plague is a generic term for a broad category of illnesses that incubate in sewers, refuse heaps, and stagnant swamps, and which are sometimes transmitted by creatures that dwell in those areas, such as rats and otyughs.
Sewer Plague
Condition
Status Effect
Sewer Plague
This condition changes how a creature can act, move, perceive, or interact with the world until the condition ends.
Rules
5
sections
Effects
When a humanoid creature is bitten by a creature that carries the disease, or when it comes into contact with filth or offal contaminated by the disease, the creature must succeed on a DC 11 Constitution saving throw or become infected.
It takes days for sewer plague's symptoms to manifest in an infected creature. Symptoms include fatigue and cramps. The infected creature suffers one level of , and it regains only half the normal number of hit points from spending Hit Dice and no hit points from finishing a long rest.
At the end of each long rest, an infected creature must make a DC 11 Constitution saving throw. On a failed save, the character gains one level of .
On a successful save, the character's level decreases by one level. If a successful saving throw reduces the infected creature's level of below 1, the creature recovers from the disease.
Reference
Rules Availability
SRD