Illnesses are status effects that villagers may be affected with while performing their duties. Illnesses vary with each village, and can be cured with medicine from Doctors. If you are looking for information on the special illnesses released with the 2018 Harvest Festival, please see Spooky Illnesses.
Minor illnesses will decrease your villager's productivity by 50%. For example, Explorers will only be able to explore 10 times per hour while afflicted, and Warriors will only be able to deal half of their normal damage.
Major diseases will render afflicted villagers unable to do their jobs, unless they have Beginner's Boon.
Beginner's Boon is a status effect applied to all villagers that are younger than 2 weeks old. If a villager with Beginner's Boon is infected with a major illness, they will still be able to work, but at half productivity, as if infected with a minor illness.
List of diseases by village
Each village has 5 unique illnesses, with 4 minor illnesses and 1 major illness.
|Monster Madness||Spider Eye Solution||Minor|
|Lunar Sickness||Sun Salve||Minor|
|Sun Allergy||Lunar Salve||Minor|
|Blood Obsession||Plasma Drink||Minor|
|Gill Rot||Gill Lotion||Minor|
|Coral Madness||Salty Sedative||Minor|
|Salt Excess||Infused Water||Minor|
|Neptune's Disease||Seadollar Salve||Major|
|Dragon's Rash||Cooling Salve||Minor|
|Horserider Bruise||Soothing Lotion||Minor|
|Royal Sickness||Gold Medicine||Minor|
|Warrior's Plague||Leech Blood||Minor|
|Ice Rot||Solar Concoction||Minor|
|Yeti Illness||Yeti Blood Infusion||Minor|
|Fur Overgrow||Fur Growth Relaxer||Minor|
|Hypothermia||Mini Sun Capsule||Major|
|Cloud Sickness||Bottled Rainstorm||Minor|
|Feather Rot||Feathering Lotion||Minor|
|Marble Allergy||Allergy Paste||Minor|
|Broken Limb||Medicinal Gauze||Major|
- If a villager is sick and visits the clinic, there is a well known bug where they will be cured and they cannot receive any illnesses, even if the pop up says they do. The only way to receive illnesses is from a new villager or a villager that never did a job before. Because of this, it's said that illnesses will be revamped sometime in the future and will be affected to animals.