Blood 1

The Shadow Plague icon

Blood 1
Blood transmission@2x

DNA Cost

8, 9 (Shadow Plague)


Gives organism ability to spread through blood-to-blood contact. Increases infectivity, especially in poor regions and mutation chance

Next Transmission

Blood 2


+2 Infectivity +0.5 Mutation +0.8 Poor Effectiveness

Blood 1 is a Tier 1 transmission in every standard plague and it can also be found in the Shadow Plague DLC and the Necroa Virus DLC as well. It increases the infectivity of your plague, with a bonus in poor countries. It also grants a bonus to mutation chance.

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