Figure 3From: Serum IL-10 as a marker of severe dengue infection Serum cytokine levels in primary and secondary dengue infection. A: Serum IL-10 levels in patients with primary (n = 9) and secondary dengue (n = 56) in the febrile phase and the critical phase. B: Serum IFNγ and serum IFNα levels in primary (n = 15) and secondary dengue (n = 63).Back to article page