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The Bio-Weapon is a genetically and biologically engineered and modified virus that was accidentally released from a laboratory. It is the final Standard Plague available in the game. It is quite similar to other diseases, primarily the virus standard plague type in physical appearance and in shape and size, except, unlike the previous plague types, the Bio-Weapon will grow progressively more lethal over the course of the game, making it more likely to kill off one's hosts before they are able to infect more people. To win, the player must use the disease's special abilities to lower the lethality in order to avoid killing too many hosts too early. This quirk makes the Bio-Weapon ideal for speed run strategies. The interface of the Bio-Weapon also very strongly resembles an RNA Retrovirus.

By default, the Bio-Weapon has slightly higher infectivity than usual and is better suited to rich countries than average.

Special AbilitiesEdit


For strategies, tips, and Q&A, please see Bio Weapon Strategy Guides.


Standard Plague Types


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