IL6 and dengue disease: To verify the hypothesis that inflammatory cytokines IL37b were mainly derived from monocytes, explore the correlation of IL37b with IL-6, IL-17A, IFN-α, IL-1β, IL-10, and TNF-α, in our study, we collected blood samples from 53 cases of dengue fever from The Eighth People's Hospital of Dongguan City and 20 healthy volunteers’ blood were used as controls.