AIDS

AIDS 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.