IL17A and dengue disease: Notably, IL-17 appears to be involved in more severe cases of infection, although the exact role of IL-17 in the pathogenesis of dengue virus infection remains unknown [97].This finding was corroborated by an independent investigation, which confirmed that the increased levels of IL-17, mostly produced by hepatic γδT cells, were accompanied by neutrophil accumulation in the liver that contributed to disease progression during dengue virus infection of mice [98].