Pathogens
CompareApple$oft
Apple$oft is a tablet manufacturer in Plague Inc, added in Mutation 1.2. This company is in charge of manufacturing and distributing the iCure tablet, which allows the public to help with cure development. It is run by Gill Bates, a parody of Bill Gates.

Bacteria
Most common cause of Plague. Unlimited potential

Bio-Weapon
Exceptionally lethal pathogen that kills everything it touches
Cheats
Cheats are abilities, not traits, that can be enabled in any combination, allowing for 2−1 different combinations, or 127. All cheats are usable by all standard plagues, special plagues and most scenarios.
Disease Types
Plague Inc. features several different types of diseases, each with different advantages and disadvantages. All types of Disease can be unlocked through completing the game, but they can be purchased as In App Purchases to bypass unlocking them manually.
Dracula
Dracula is an origin story exclusive to the Shadow Plague DLC. introduced in Mutation 1.13.
Drones
Drones are small UAVs that only appear in Simian Flu plagues and the Shadow Plague.

Fungus
Fungal spores struggle to travel long distances without special effort
History of Plague Inc.
This article covers the version history of Plague Inc., aka "mutation". Info on the updates can be found on the official website.

Nano-Virus
Out of control, microscopic machine with a built in kill switch
Ndemic Creations
Ndemic Creations is an independent game studio responsible for programming and publishing Plague Inc. and Rebel Inc. The company was founded on January 30, 2012, by James Vaughan, and is headquartered in Bristol, UK.

Necroa Virus
Unclassified. Early analysis suggests extreme regenerative abilities.

Neurax Worm
Manipulative organism that burrows into the brain
Norovirus
The Norovirus is a upcoming virus category pathogen for the 2025 update. It focuses on food and water contamination and human contact. It can survive long time outside infected so it is difficult to cure. However, it has a low base lethality so it needs a careful strategy to win.

Parasite
Parasitic lifestyle prevents DNA alteration from every day infection

Plague Inc.
In addition to the mobile version, there are also the console and PC versions of the game called Plague Inc.: Evolved. There is also a board game called Plague Inc.: The Board Game, which was released in November 2017.

Prion
Slow, subtle and extremely complex pathogen hidden inside the brain
Scenario Creator
The Scenario Creator is a feature formerly exclusive to Plague Inc: Evolved, and an app in the mobile version as a stand-alone app, with the option to create a custom scenario. It has the same base plagues (Bacteria, Virus, etc. and the expansions for you to use as a starting point) from the main game, and gives you the option of modifying the world's statistics (country name, population, healthcare budgets, etc.), in game events (recommended for expert users only), and a government actions at your disposal. The Scenario Creator is separated into 5 different parts (or labs). It isn't possible…

Shadow Plague
Sentient, mutagenic pathogen. Triggers a powerful thirst for blood!
Shadow Plague\Statistics Reference
The Shadow Plague can be considered to be more hands-on than the other plagues because there is one vampire individual, initially, who is infected with the Shadow Plague, and the player can decide at what point the Vampire starts infecting people. It is possible to take down the entire world with one single Vampire, and the cure effort will never start until Shadow Blessing is evolved.
Shadow Pool
Shadow Pool is an origin story exclusive to the Shadow Plague DLC.

Simian Flu
Genetically modified. Increases ape intelligence but untested on humans...
Special Plagues
Special Plagues are expansion packs of Plague Inc. and Plague Inc: Evolved.
Standard Plagues
The Standard Plagues are the plagues that are free and can be unlocked and act as the campaign to the player when they first play the game. The first playable Standard Plague is Bacteria. In order to unlock the next plague type, the player must beat the plague they've most recently unlocked on Normal or higher difficulty. Each plague comes with its own abilities, strengths, weaknesses, and even its own playing style. For example, the Bio-Weapon is meant to be a fast-paced disease, whereas one can afford to be more cautious when using Parasite.