Cytokine Storm


Positive feedback loop between cytokines and immune cells causes fatal immune reaction. Can offer insights into cure development

DNA cost


Severity increase




Infectivity increase


Cytokine Storm is a tier 4 symptom exclusive to the Swine Flu scenario. It causes cytokines and immune cells to have a positive feedback loop, which in turn causes a fatal immune reaction. It can offer insights in cure research, however.

Trivia Edit

  • Cytokine Storms are believed to be the primary cause of death in adult humans during the unusually deadly Flu pandemic of 1918 known as the Spanish Flu.