CD40LG and dengue disease: This study evaluated the diagnostic utility of VIDAS® Dengue diagnostic assays—DENV NS1 antigen (VIDAS® DENGUE NS1 Ag), anti-DENV IgM (VIDAS® Anti-DENGUE IgM), and anti-DENV IgG (VIDAS® Anti-DENGUE IgG)—when performed in parallel, regardless of the time elapsed since symptom onset, for diagnosing and classifying dengue as either primary or secondary.