Serological studies have reported the presence of these arboviruses in Cameroon by testing IgG and IgM antibodies (Dengue, Chikungunya and Zika) in the sera of inhabitants of Douala, Yaounde, Dschang, Garoua, Bertoua, Ngaoundere and Graoua [8,43]. The gene discussed is CD40LG; the disease is dengue disease.