CD40LG and dengue disease: We therefore prospectively examined the diagnostic accuracy of Panbio JEV Dengue IgM Combo ELISA and XCyton JEV CheX ELISA, in comparison with the reference AFRIMS JEV MAC ELISA, for the detection of anti-JEV IgM antibodies in CSF and serum in patients with suspected central nervous system (CNS) infections in Laos, where dengue and JEV co-circulate.