Of the 58 fatal laboratory-positive dengue cases, 53 (91%) were DENV RT-PCR positive in tissue, serum or both; four (7%) were anti-DENV IgM positive in a single serum specimen; and one (2%) demonstrated anti-DENV IgM seroconversion in paired specimens (Table 2). The gene discussed is CD40LG; the disease is dengue disease.