When the IgM ELISAs were evaluated on a set of 65 qPCR confirmed patients (54 dengue and 11 other aetiologies), the Panbio kit demonstrated significantly higher sensitivity (64.8%; 95%CI: 50.6–77.3%, p = 0.028 using chi-square test) when compared to the InBios kit (18.5%; 95%CI: 9.3–31.4%) when calculated for single acute serum. The gene discussed is CD40LG; the disease is dengue disease.