A plague was an outbreak of an infectious disease that affected people over an extensive geographical area, otherwise known as a pandemic. There were also specific infectious diseases that were given the name plague.

In 2266, Leonard McCoy concurred that a plague might explain the death of the grups on Earth Two. (TOS: "Miri")

The term plague could also be used to describe any other widespread, unpleasant phenomenon. In 2270, James T. Kirk described the spate of practical jokes aboard USS Enterprise in his log as plaguing their crew. (TAS: "The Practical Joker")

Types of plaguesEdit

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