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Complete Volcanic Ash
AchievementsScore 3 biohazards in the Volcanic Ash scenario

Complete Where is Everyone?
AchievementsScore 3 biohazards in the Where is Everyone? scenario

Complete Who Cares
AchievementsScore 3 biohazards with Who Cares scenario

Complete Xenophobia
AchievementsScore 3 biohazards with Xenophobia scenario

Comrade-In-Arms
AchievementsWin a Co-op multiplayer game on Normal Difficulty

Concertina Locomotion
TransmissionsAbility to grip with portions of the body while pulling/pushing other sections allows faster movement outside host, increasing infectivity

Confusion
SymptomsConfusion is a symptom in the Neurax Worm DLC and the Nipah Virus scenario. It causes stimulated dopamine production which causes in-turn bouts of confusion in hosts. It is harder to concentrate on complex work.

Connect the Dots
AchievementsBeat the Measles Scenario on Normal

Contagion Cancelled
AchievementsPrevent a film about your plague being made

Contaminated Package
AchievementsLet humans spread the disease via blood transfusion

Contentedness
SymptomsMelotonin tap helps host realise that being happy makes them enjoy life more. They are less interested in developing a cure.
Core stats
ScenariosThese are the core stats from Plague Inc. and Plague Inc: Evolved, Lethality being represented by a skull symbol at the bottom of the screen, on the Death Toll Meter, and Infectivity being represented by a biohazard symbol at the bottom of the screen, on the Infection Count Meter. For diseases that don’t kill, such as Santa's Little Helper or Ultimate Board Games, the skull symbol is still a default. While it stays at zero in Santa's Little Helper, the dead people are replaced with “sales” in Ultimate Board Games. In Fake News, the skull symbol is entirely replaced with…

Corneal Ulceration
SymptomsPustules form on the surface of the eye, causing inflammation and can trigger blindness. Severe and slows work on cure

Corpse Feeder 1
TransmissionsWorms drawn to corpses, increasing infectivity when corpse present

Corpse Feeder 2
TransmissionsWorms undergo feeding frenzy in corpses, significantly increasing infectivity when corpses present

Corrupted Air
AbilitiesThe Shadow Plague erupts out of every pore in the vampire's body - millions of humans are infected each day

Cortisol Sensitivity
GenesReduces research from Gen-Sys experiments on apes
Coughing
SymptomsChance of infection by spreading pathogen into surroundings, especially in high density, urban areas

Count Countula
AchievementsCarefully count your vampire's feeds
Countries
MechanicsCountries are parts of the world in Plague Inc. and Plague Inc: Evolved, sometimes spanning multiple real-life countries. Each country has varying population size and density, social and natural environments, and wealth. Countries with higher population density are easier to infect, while wealthier countries will greatly slow weaker infections down with modern drugs and generally tend to contribute more to cure research. All countries will try to counteract infection and death rates by trying their best to counter any known methods of the plague spreading. This can vary between exterminating insects when the plague is known to be transmitted through…
Coup
EventsA Coup is a feature exclusive to the Simian Flu DLC.

Covert Expertise
AbilitiesApes monitor human incursions into their territory and camouflage their homes. Significantly reduce likelihood of detection

Cracker Cocoon
TransmissionsSeverely dehydrated worms form cocoons and if pulled, pop and spread eggs acrooss a wide area. Increases infectivity, especially in arid countries

Cranial Dispersion
SymptomsCranial Elephantitis places brain under increased pressure. Heavy head wounds cause aerosoled brain matter to be rapidly ejected - increasing chance of contamination

