For information about the purified Pyrexia Virus Item, visit the Pyrexia Item page.

Pyrexia[]
A virus that will cause your stamina to regenerate slower and deplete faster if you are bitten by a Crustpede when your immunity is Medium or Low.
Symptoms | Causes | Cures | ||||
---|---|---|---|---|---|---|
Stamina consumption increased | Crustpede Bites | ![]() |
Capsaisin | ![]() | ||
Stamina regeneration decreased | Medical Station | ![]() |
Immunity[]

Immunity progressively lowers as the story progresses, and while you can temporarily increase it through various means, you can not permanently increase it back to High.
- At High Immunity, you will be immune to viruses.
- At Medium Immunity, you will be susceptible to the basic forms of viruses and their symptoms, and you will recover from them naturally over time.
- At Low Immunity, instead of recovering from a basic virus, you will progress to the Chronic Form of the virus, where the symptoms are more intensified and a cure only possible through your direct intervention, by either Medicine or a Medical Station.