Fever is a symptom in the Standard Plagues, the Simian Flu DLC & the Necroa Virus DLC. It increases body temperature, contagiousness, and severe dehydration through excessive sweating. It slightly increases disease lethality and Infectivity, although it is more lethal than Paralysis.
- Along with Diarrhoea, Tumours and Inflammation, Fever is one of four symptoms which can be better understood by scientists during a game, making a plague easier to cure if it has this trait.
- In Necroa Virus, it and Coma are non-lethal, being simply used to reduce research speed.
- This is a Pre-Loaded trait in Black Death and Smallpox.