List of symptoms

This is a complete list of symptoms throughout Plague Inc.

A

Symptom	Plague Type	Description
Abscesses	Standard	Pockets of infected flesh are painful and act as breeding grounds for the pathogen, increasing infection rates when burst.
Acidic Reflux	Necroa Virus	Extreme laryngopharyngeal reflux causes acidic saliva. Increases severity and gives zombies a combat advantage
Acute Encephalitis	Necroa Virus/Neurax Worm	Multiple inflammatory lesions in the brain triggered. Causes neurological damage resulting in death
Adoration	Neurax Worm	Surges of testosterone and estrogone hijack host emotions and create desire to spread infection
Adrenal Surge	Necroa Virus	Mutation of the adrenal cortex causes adrenaline over-production, increasing alertness and aggression of zombies
Adrenergic Constriction	Neurax Worm	Beta-receptor blockers released, dampening anxiety in the host and lessening severity of allergic reactions to the worm
Aggression	Neurax Worm/Frozen Virus	Hypothalamic tap causes irrational hatred and violence, especially towards authorities and uninfected
Akinetopsia	Neurax Worm	Host struggles to perceive motion making them more likely to collide with others/objects
Anabolic Boost	Necroa Virus	Surges of testosterone significantly increase muscle mass and weight of some zombies. Severity significantly increased
Anaemia	Standard	Decrease in red blood cells or haemoglobin in the blood can lead to hypoxia in the organs
Anaerobic Resuscitation	Necroa Virus	Infected brain cells switch to anaerobic respiration. Lactic acid buildup is lethal and destroys higher brain processes and personality.
Aneurysm	Neurax Worm	Tendrils feed off blood vessels in the brain which causes aneurysms, can be lethal and hard to accurately diagnose
Anxiolytic Infusion	Neurax Worm	Mass synthesis of neurotransmitter, gamma-aminobutyric acid, significantly reduces anxiety in the host and minimises severity of reactions
Aphasia	Neurax Worm/Frozen Virus	Bruised tissue causes language impairment. Makes developing a cure significantly harder
Apraxia	Neurax Worm	Bruised tissue causes inability to execute certain movements. Reduces infectiousness but extremely hard to cure
Assassin	Simian Flu (combo)	Apes able to use their stealth abilities when attacking, increasing their effectiveness when needing to fight
Autophagia	Necroa Virus	Compulsion to bite or partially devour own body - typically fingers or skin. Increases infection rates
Autothysis	Necroa Virus	Explosive mix of hydrogen sulphide and methane collects inside zombie. Significantly increases severity and zombie combat advantage

B

Symptom	Plague Type	Description
Bath Time	Necroa Virus (Combo)	Autophagia, Polyphagia, and Cannibalism are triggering horrific attacks daily - significantly increasing infectivity and concern over <plague name>
Blindness	Neurax Worm/Simian Flu	Primary visual cortex disconnected causing blindness. Significantly reduced awareness and causes fatal accidents
Blood in the Air	Necroa Virus (Combo)	A heightened sense of smell combined with paranoia causes zombies to relentlessly search in an area where they smell fresh blood - increasing their severity
Blurred Vision	Simian Flu/Nipah Virus	Lack of sharpness of vision results in the inability to see fine detail
Bone Dysplasia	Necroa Virus/Frozen Virus	Relentless bone growth with high mineral density results in severe musculoskeletal stress; lethal in many cases. Broken skin increases infection
Boomer	Necroa Virus (Combo)	Autothysis and Liquefactive Necrosis cause some zombies to explode when excited and cover their surroundings with infectious slime - increasing their severity
Brain Haemorrhage	Neurax Worm	Tendrils digest brain matter for nutrients causing complete degeneration and rupture of the cerebral tissue
Buboes	Black Death	Infected lymph nodes become swollen and inflamed. Bursting can aerosolise contents and infect others.