CD40LG and dengue disease: Of the 88 dengue cases, 53 (60.2 %) were confirmed by serum RT-qPCR (some also had a positive result in the DENV NS1 or IgM ELISA), 7 (8.0 %) by NS1-ELISA (some also had a positive result in the DENV IgM ELISA), and 28 (31.8 %) were positive solely by IgM ELISA seroconversion.