A total of 12 genes (TLR3, TLR7, TLR9, RIGI, IRF3, IRF7, MYD88, CLEC5A, IFN-α, IFN-γ, IFN-β, and MDA5), were quantified in 28 dengue patients (13 DHF and 15 DF) using qPCR. This evidence concerns the gene TLR9 and dengue disease.