Diseases

See also:  Status Effects

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Survivors can become sick when infected with diseases. Depending by each specific type, the sickness can spread by wild creatures or by environment conditions. Some diseases are contagious and so being able to spread between survivors, while other do not. There are ways to cure these diseases with various methods and items, or at the most or least, prevent them from even happening.

Disease Prevention

• Investing attribute points in  Fortitude will boost your natural immunity to Disease by a small percentage. While the data isn't available, the Patch Notes for v242.6 confirm that 90 Fortitude (or 45 level-ups in Fortitude at 2 points per level-up) will grant an 80% reduction in Disease chance.
• A  Gas Mask will protect you from airborne contagions. (The gas mask will protect you from swamp fever)

Contagious Diseases

Mega Rabies
	HUD Text: Health and stamina rapidly decreasing! Effects: Draining  Health Draining  Stamina Vectors: Contact transmission with a  Megalania. Bite from an  Onyc. (PVP) Airborne transmission from infected  Humans and tamed  Dodos. Cure:  Lesser Antidote or  Wyvern Milk or laying in a  Tek Sleeping Pod. Only lasts 120 seconds, catching it while infected resets this timer.

Swamp Fever

HUD Text: Health, Damage, Weight, Stamina & Speed are permanently decreased until Cured! Effects: 20% reduction in  Weight,  Melee Damage,  Health and  Stamina. 20% increase in  Movement Speed. 50% decrease in  Food,  Water, and  Oxygen consumption. Vectors: Contact transmission with a  Diseased Leech. (PVP) Airborne transmission from infected  Humans and tamed  Dodos. Dead Dodos that were infected still carry swamp fever. (PVE) Airborne transmission from infected tribemates. Cure:  Lesser Antidote (Will not work for creatures)  Nameless Venom Laying in a  Tek Sleeping Pod Upon administration of the cure, Humans and Dodos have immunity from this disease for three minutes. UPDATE March 2020, Making use of an Obelisk or Supply Crate to transfer your survivor to a new server in older versions would cure this disease. You can now ONLY USE SCORCHED EARTH to cure disease. This means if you are transferring with the disease, it will be cured upon spawning in on any Scorched Earth map Notes:  Bug Repellant will render you invisible to Leeches as a preventative measure. However, they will still be aggressive if you attack them. Leveling up any of your attributes used to be able to remove the sickness. Gallery: A Diseased Leech Green Haze (Third-Person)

Non-Contagious Disease

Lamprey Poison

HUD Text: Health, Damage, Stamina, & Weight are permanently decreased until Cured or wears off! Effects: 20% reduction in  Weight,  Melee Damage,  Health and  Stamina. 20% increase in  Movement Speed. 50% reduction in  Food,  Water, and  Oxygen consumption. Vectors: 2% Contact transmission with a  Lamprey. Cure:  Nameless Venom Upon administration of the cure, Humans and Dodos have immunity from this disease for three minutes. Leveling up any of your attributes removes the sickness. Notes:  Bug Repellant will render you invisible to Lampreys as a preventative measure. However, they will still be aggressive if you attack them.

Radiation Sickness

HUD Text: Applies damage over time to death Effects: Loses 1 point hp every second Draining  Health Vectors: Entering an Elements region of Aberration without Full Hazard Protection. Effect stacks. Cure:  Mushroom Brew Can be given to tamed dino not suited for Element regions immunity to radiation. Effect does not stack. Cannot be consumed by humans.  Auric Mushroom Can be eaten to remove ~4 seconds of radiation sickness per 1.  Hazard Suit Armor Must be worn in full to take effect. Note: wearing the suit does not remove existing radiation sickness, it only prevents acquiring it in the first place, or extending the duration of existing radiation sickness.  Lamprey Have a lamprey attached to you. Provides Charge light and Radiation immunity so long as it remains attached. Does not remove existing radiation sickness however. Notes: This status occurs on Aberration map by being around radioactive parts of the map. Not wearing the whole Hazard Suit will cause you to take damage over time.

Achievement

Cure-All Cure yourself of Swamp Fever.

• Curing yourself of Swamp Fever with the  Lesser Antidote will award the "Cure-All" achievement.

Notes

• If the option "Prevent Disease" in advanced server/single player setting is checked, players will be immune to Swamp Fever, Mega Rabies and Lamprey Poison, but not Radiation Disease, as this one is considered as an environmental negative status.
• Players will have their disease cured upon respawn if "Non Permanent Disease" is checked.

Changelog

Patch	ARK: Survival Evolved Changes
242.0	Diseases are added to the game.
242.3	Made Swamp Fever increase movement speed by 20% and decrease rate of food, water, and oxygen consumption by 50%. Made Swamp Fever not able to be transmitted through collisions/walls. Among current non-human creatures, now only Tamed Dodos can be infected with Swamp Fever.
242.6	Made Fortitude slightly more effective for avoiding Diseases. Made Swamp Fever particle effect not visible from player's own perspective.
243.4	Fixed issue of getting more Swamp Fevers if you had Leeches attached to you on each subsequent game relaunch.
244.6	Diseases are now permanently cleared whenever you level-up; as you get "older", it's more time consuming to recover from a disease.
246.1	Diseases no longer persist across Survivor cross-server travel.
261.0	Onyc now have a 10% chance per melee hit to apply megarabies to victim.
279.261	Fixed bug that caused Pachyrhinosaurus gas to give Swamp Fever.

Patch	ARK: Survival Ascended Changes
25.25	Fixed duplicate Swamp Fever buffs being applied.