Delirium

Delirium
Info	Reduction in cognitive function causes irrationality and paranoia. Can be fatal and significantly slows future research speed
Initial DNA Cost	12
Infectivity	Slight (1)
Severity	Slight (3)
Lethality	Slight (1)
Cure	+ 0.1 Cure Requirement +0.03 Research Inefficiency
Previous Symptom	Photophobia (Necroa Virus) Mania (Mad Cow Disease)
Next Symptom	Cytopathic Reanimation (Necroa Virus) Insanity (Mad Cow Disease)

Delirium is a symptom in the Necroa Virus and the Mad Cow Disease scenario. It makes people irrational and paranoid, and can be fatal. It slows future cure research speed.

Trivia

• This symptom is best devolved when trying to complete Not Another Zombie Game because if left alone, it could lead evolution of Cytopathic Reanimation, which turns infected people and corpses into zombies, making Not Another Zombie Game impossible to achieve.
• In the Necroa Virus DLC, there is a possibility that this symptom generates extreme paranoia in a country, to be specific a country with more than half of its population infected. In addition, for this event to happen, the player cannot evolve the Cytopathic Reanimation symptom. When this event happens in a country, the local priority towards the disease will increase by 10.
• In the Board Game version of Plague Inc., this symptom gives the plague more resistance to heat in addition to more effectiveness in infecting through water.

Gallery

Delirium Symptom Card from Plague Inc.: The Board Game Source: This image was taken from the digitisation of the Official Cards included in the Plague Inc.: The Board Game Add-On for TableTop Simulator (Original Add-On Link on Steam, respective credits for the digitization of Board Game Cards scanned by them)