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A Colt Classic
AchievementsDiscover the Steeplechase board game combo
Abilities
AbilitiesAbilities are traits that increase the strength of the pathogen. Most abilities are the same for every plague, but every plague also has its own unique abilities.
Abilities (Multiplayer)
AbilitiesIn multiplayer, the abilities are similar in Co-Op mode and Versus mode. These abilities help the plagues to obtain more infection, lethality or resistance to the cure.
Abilities (Necroa Virus)
AbilitiesThe following is a list of abilities in the Necroa Virus DLC:
Abilities (Neurax Worm)
AbilitiesThese abilities will affect the plague in different countries, climates and temperatures.
Abilities (Simian Flu)
AbilitiesThe following is a list of, as well as an overview of, abilities in the Simian Flu DLC:
Abscesses
SymptomsPockets of infected flesh are painful and act as breeding grounds for the pathogen, increasing infection rates when burst

Acidic Reflux
SymptomsExtreme laryngopharyngeal reflux causes acidic saliva. Increases severity and gives zombies a combat advantage
Active Abilities
AbilitiesActive Abilities are a feature exclusive to the "Special Plagues" in Plague Inc. and Plague Inc: Evolved

Acute Encephalitis
SymptomsAdaptability
AbilitiesAdaptability is a header that replaces "Abilities" in the Fake News scenario, and is a group of traits.

Adoration
SymptomsSurges of testosterone and estrogone hijack host emotions and create desire to spread infection

Adrenal Surge
GenesIncreases ape strength and speed but lethal over time

Adrenal Surge (Ability)
AbilitiesMutation of the adrenal cortex increases adrenaline and can trigger frenzied attacks - blood rage becomes more powerful.

Adrenal Surge (Gene)
GenesIncrease ape strength and speed but lethal over time

Adrenal Surge (Symptom)
SymptomsMutation of the adrenal cortex causes adrenaline over-production, increasing alertness and aggression of zombies

Adrenergic Constriction
SymptomsBeta-receptor blockers released, dampening anxiety in the host and lessening severity of allergic reactions to the worm

Adverse Reactions
MechanicsThe music is meant to be exclusive to the original mobile release, Plague Inc.. In the PC and console versions of the game, Plague Inc. Evolved, the intended theme is Z Com Falls; however, for unknown reasons, Adverse Reactions ends up being the theme used in the mobile and PC releases of the game.

Aerocyte
GenesIncreases chance of plague spreading by air

Aerophobic Bat
GenesVampire flies faster but flying damages health

Affection
SymptomsAdrenal cortex manipulation helps the nurture and development of relationships. Increases infectivity and chance of mutation

Afghanistan
CountriesA poor country. Typically has an arid climate.

Aggression
SymptomsHypothalamic tap causes irrational hatred and violence, especially towards authorities and uninfected
AIDS
ScenariosAIDS is a cancelled scenario in Mutation 1.7, in which the player must use HIV/AIDS to infect and wipe out the world. It can be speculated that it was cut during the development of the Scenarios DLC due to having the connection with sex and drugs, which can raise the age rating of the game. The scenario was removed because the developers felt it was "too real", as HIV is a disease that still affects certain groups of people, and people with the condition are often discriminated against.

