CXCL8 and acute respiratory distress syndrome: In comparison to uncomplicated cases, severely infected patients with ARDS exhibit higher levels of the cytokines, i.e., IFN-α, IFN-γ, IL-1, IL-6, IL-12, and TGFβ, and the chemokines, i.e., CCL2, CXCL10, CXCL9, and IL-8 [34,82,83,84,85,86].