When a character is injured by a contaminated attack (such as a mummy’s slam attack, which can transmit mummy rot), touches an item smeared with diseased matter, or consumes disease- tainted food or drink, he must make an immediate Fortitude saving throw. If he succeeds, the disease has no effect—his immune system fought off the infection. If he fails, he takes damage after an incubation period. Once per day afterward, he must make a successful Fortitude saving throw to avoid repeated damage. Two successful saving throws in a row indicate that he has fought off the disease and recovers, taking no more damage.
You can roll these Fortitude saving throws for the player so that he doesn’t know whether the disease has taken hold.
|Ghoul Fever||Injury (Bite)||12||1 day||1d3 con, 1d3 dex||MM1|
|Blinding sickness||Ingested||16||1d3 days||1d4 Str1||DMG|
|Cackle fever||Inhaled||16||1 day||1d6 Wis||DMG|
|Demon fever||Injury||18||1 day||1d6 Con2||DMG|
|Devil chills3||Injury||14||1d4 days||1d4 Str||DMG|
|Filth fever||Injury||12||1d3 days||1d3 Dex, 1d3 Con||DMG|
|Mindfire||Inhaled||12||1 day||1d4 Int||DMG|
|Mummy rot4||Contact||20||1 day||1d6 Con||DMG|
|Red ache||Injury||15||1d3 days||1d6 Str||DMG|
|Shakes||Contact||13||1 day||1d8 Dex||DMG|
|Slimy doom||Contact||14||1 day||1d4 Con2||DMG|
1 Each time the victim takes 2 or more damage from the disease, he must make another Fortitude save or be permanently blinded.
2 When damaged, character must succeed on another saving throw or 1 point of damage is permanent drain instead.
3 The victim must make three successful Fortitude saving throws in a row to recover from devil chills.
4 Successful saves do not allow the character to recover. Only magical healing can save the character.