Following up on my Comprehensive List of Diseases in 4th Edition, the following is a compilation of many diseases appearing in 3rd party sources.  They are listed here broken down first by level for easy reference and then, in a separate set of tables, by publisher, so you can quickly see what diseases are available in the books you have.

THIRD PARTY PUBLISHERS – DISEASES BY LEVEL

LEVEL	DISEASE	DESCRIPTION	SOURCE
Lvl 01	Chimney	A nuisance at most, sufferers exhibit a loud, dry cough, and breath that smells like soot.	Kobold Quarterly 12 (p.57)
Lvl 02	Couplet (Curse)	Your curse compels the target to speak in rhyme, to your great amusement and their tongue-twisted dismay.	Hero’s Handbook: Eladrin  (p.36)
Lvl 02	Hobbles	Victims of hobbles suffer from swelling of the extremities, tenderness of the feet, and joint pain. Walking becomes uncomfortable and running painful (if not impossible) as the disease progresses.	Monsterecology: Orcs (p.29)
Lvl 02	Tumbledown	Often spread when the target swims in or drinks tainted water, the disease causes severe vertigo and makes it impossible for the sufferer to stand.	Kobold Quarterly 12  (p.57)
Lvl 03	Dark Rot	Some say this disease was created in Morgau as a means to speed the living onto the land of dead. Dark Rot appears at random, so its contagion is still not fully understood.	Kobold Quarterly 12  (p.57)
Lvl 03	Iron Rot	Rusted metal of all sorts, from old sword blades to discarded nails, carries iron rot. The victim’s joints slowly stiffen until movement of any kind, even speech, is impossible…	KoboldQuarterly.com (Death’s Door: A Few Diseases More)
Lvl 04	Night’s Delusions	This disease travels on the blades of weapons. At first, sufferers feel a sense of elation, but this gradually leads to dreamlike illusions.	KoboldQuarterly.com (Death’s Door: A Few Diseases More)
Lvl 04	Skinpaper	The sufferer’s skin becomes dry and rigid, tearing open at the least scratch. The final stage causes the infected person to suffer horrible wounds when injured.	Kobold Quarterly 12  (p.57)
Lvl 05	Bloat Gloom	So named because the target’s face and limbs swell noticeably, the disease deadens pain from physical injuries and makes the sufferer oblivious to the severity of his wounds.	Kobold Quarterly 12  (p.59)
Lvl 05	Trasmute Emotions (Curse)	Your curse robs the target of all normal feelings. You choose to replace all of the target’s emotions with giddy joy and laughter, or deepest misery.	Hero’s Handbook: Eladrin  (p.36)
Lvl 06	Blood Rotting Sickness	Any cut from centaur arrows taints the blood and leaves victims feverish and weak.	Kobold Quarterly 7 (p.44)
Lvl 06	Bonewrack	Spread through insect bites, this disease causes horrible joint pain. A confounding illness, bonewrack seems to get worse just before the target recovers.	Kobold Quarterly 12  (p.59)
Lvl 06	The Fugue	Stale tomb air and fouled water transmit the fugue. Those afflicted report waking up in places or circumstances in which they have no memory of entering.	KoboldQuarterly.com (Death’s Door: A Few Diseases More)
Lvl 07	Blue Ague	Carried on the foul vapors from sewers or through food, this disease befuddles the mind, causing the sufferer to act as if in a torpor.	Kobold Quarterly 12  (p.59)
Lvl 08	Angel Fire	This disease is so named because the sufferer’s flesh burns with radiant energy that only worsens in the presence of healing magic.	Kobold Quarterly 12  (p.59)
Lvl 08	Larval Infestation		Critter Cache 1: Big Bugs (p.15)
Lvl 08	Sailor Fever	Often thought to be the reaction of a sailor who has lost his mind after too many days at sea, this disease spreads through flea and tick bites and manifests anywhere those vermin are plentiful.	KoboldQuarterly.com (Death’s Door: A Few Diseases More)
Lvl 08	Searing Fever	The symptoms of searing sickness include fever, extreme headache, joint pain, and blindness.	Monsterecology: Orcs  (p.34)
Lvl 09	Bleeding Blights	Thinned blood causes the victim to bleed profusely from even the slightest wound.	Critter Cache 4: Fey Folk (p.14)
Lvl 09	Necrophage		Critter Cache 6: Lovecraftian Bestiary (p.20)
Lvl 10	Fool’s Cap (Curse)	Your curse gives the target an ass’s head, matching external reality to essential truth.	Hero’s Handbook: Eladrin  (p.36)
Lvl 11	Tremors	Contracted through addiction to Requiem, this disease is marked by sweating, vomiting, and un- controllable muscle spasms.	Kobold Quarterly 9  (p.57)
Lvl 12	Bauble (Curse)	Your curse causes the target to prize the possession you des- ignate over all other things, an obsession that quickly grows into madness.	Hero’s Handbook: Eladrin (p.35)
Lvl 14	Feral Hunger (Curse)	Your curse causes the target to become revolted at the sight of ordinary food and crave grass, hay, or blood instead.	Hero’s Handbook: Eladrin  (p.36)
Lvl 14	Fungal Infestation	This disease infects the target with a virulent strain of fungal growth. The fungus slowly poisons the target, and creates a severe, and potentially deadly allergy to sunlight within its host.	Blackdirge’s Dungeon Denizens (p.71)
Lvl 15	Thew Blight	A particularly horrid disease, thew blight slowly liquefies muscle tissue until the victim is little more than immobile lump of wither flesh.	Blackdirge’s Dungeon Denizens (p.91)
Lvl 16	Madness of the Wailing Wind	The insidious wind whistles in your ears, whispering blasphemous secrets impossible to ignore.	Kobold Quarterly 11 (p70)
Lvl 16	Spetic Death	Rampant, flesh-eating bacteria devour the victim from the inside out.	Critter Cache 5: Animals and Beasts (p.15)
Lvl 22	Gaes Curse		Azagar’s Book of Rituals (p.11)
Lvl 22	Skinchanger (Curse)	Your curse causes the target to spend half of each day as an ordinary animal with animal intelligence and instincts.	Hero’s Handbook: Eladrin  (p.36)
Lvl 25	Cannibal Curse	You are overcome with a terrible desire to eat the flesh of your own kind… even if you have	Blackdirge’s Dungeon Denizens  (p.91)

SOURCE	DISEASE	LEVEL	DESCRIPTION
Azagar’s Book of Rituals (p.11)	Gaes Curse	Lvl 22
Blackdirge’s Dungeon Denizens (p.71)	Fungal Infestation	Lvl 14	This disease infects the target with a virulent strain of fungal growth. The fungus slowly poisons the target, and creates a severe, and potentially deadly allergy to sunlight within its host.
(p.91)	Thew Blight	Lvl 15	A particularly horrid disease, thew blight slowly liquefies muscle tissue until the victim is little more than immobile lump of wither flesh.
(p.91)	Cannibal Curse	Lvl 25	You are overcome with a terrible desire to eat the flesh of your own kind… even if you have
Critter Cache 1: Big Bugs (p.15)	Larval Infestation	Lvl 8
Critter Cache 4: Fey Folk (p.14)	Bleeding Blights	Lvl 9	Thinned blood causes the victim to bleed profusely from even the slightest wound.
Critter Cache 5: Animals and Beasts (p.15)	Septic Death	Lvl 16	Rampant, flesh-eating bacteria devour the victim from the inside out.
Critter Cache 6: Lovecraftian Bestiary (p.20)	Necrophage	Lvl 9
Monsterecology: Orcs (p.29)	Hobbles	Lvl 2	Victims of hobbles suffer from swelling of the extremities, tenderness of the feet, and joint pain. Walking becomes uncomfortable and running painful (if not impossible) as the disease progresses.
(p.34)	Searing Fever	Lvl 8	The symptoms of searing sickness include fever, extreme headache, joint pain, and blindness.
Hero’s Handbook: Eladrin (p.35)	Bauble (Curse)	Lvl 12	Your curse causes the target to prize the possession you des- ignate over all other things, an obsession that quickly grows into madness.
(p.36)	Couplet (Curse)	Lvl 2	Your curse compels the target to speak in rhyme, to your great amusement and their tongue-twisted dismay.
(p.36)	Fool’s Cap (Curse)	Lvl 10	Your curse gives the target an ass’s head, matching external reality to essential truth.
(p.36)	Feral Hunger (Curse)	Lvl 14	Your curse causes the target to become revolted at the sight of ordinary food and crave grass, hay, or blood instead.
(p.36)	Trasmute Emotions (Curse)	Lvl 5	Your curse robs the target of all normal feelings. You choose to replace all of the target’s emotions with giddy joy and laughter, or deepest misery.
(p.36)	Skinchanger (Curse)	Lvl 22	Your curse causes the target to spend half of each day as an ordinary animal with animal intelligence and instincts.

SOURCE	DISEASE	LEVEL	DESCRIPTION
Kobold Quarterly 7 (p.44)	Blood Rotting Sickness	Lvl 6	Any cut from centaur arrows taints the blood and leaves victims feverish and weak.
Kobold Quarterly 9 (p.57)	Tremors	Lvl 11	Contracted through addiction to Requiem, this disease is marked by sweating, vomiting, and un- controllable muscle spasms.
Kobold Quarterly 11 (p70)	Madness of the Wailing Wind	Lvl 16	The insidious wind whistles in your ears, whispering blasphemous secrets impossible to ignore.
Kobold Quarterly 12 (p.57)	Chimney	Lvl 1	A nuisance at most, sufferers exhibit a loud, dry cough, and breath that smells like soot.
(p.57)	Tumbledown	Lvl 2	Often spread when the target swims in or drinks tainted water, the disease causes severe vertigo and makes it impossible for the sufferer to stand.
(p.57)	Dark Rot	Lvl 3	Some say this disease was created in Morgau as a means to speed the living onto the land of dead. Dark Rot appears at random, so its contagion is still not fully understood.
(p.57)	Skinpaper	Lvl 4	The sufferer’s skin becomes dry and rigid, tearing open at the least scratch. The final stage causes the infected person to suffer horrible wounds when injured.
(p.59)	Bloat Gloom	Lvl 5	So named because the target’s face and limbs swell noticeably, the disease deadens pain from physical injuries and makes the sufferer oblivious to the severity of his wounds.
(p.59)	Bonewrack	Lvl 6	Spread through insect bites, this disease causes horrible joint pain. A confounding illness, bonewrack seems to get worse just before the target recovers.
(p.59)	Blue Ague	Lvl 7	Carried on the foul vapors from sewers or through food, this disease befuddles the mind, causing the sufferer to act as if in a torpor.
(p.59)	Angel Fire	Lvl 8	This disease is so named because the sufferer’s flesh burns with radiant energy that only worsens in the presence of healing magic.
KoboldQuarterly.com (Death’s Door: A Few Diseases More)	Iron Rot	Lvl 3	Rusted metal of all sorts, from old sword blades to discarded nails, carries iron rot. The victim’s joints slowly stiffen until movement of any kind, even speech, is impossible…
(Death’s Door: A Few Diseases More)	Night’s Delusions	Lvl 4	This disease travels on the blades of weapons. At first, sufferers feel a sense of elation, but this gradually leads to dreamlike illusions.
(Death’s Door: A Few Diseases More)	The Fugue	Lvl 6	Stale tomb air and fouled water transmit the fugue. Those afflicted report waking up in places or circumstances in which they have no memory of entering.
(Death’s Door: A Few Diseases More)	Sailor Fever	Lvl 8	Often thought to be the reaction of a sailor who has lost his mind after too many days at sea, this disease spreads through flea and tick bites and manifests anywhere those vermin are plentiful.