Study subjects

DHF: dengue hemorrhagic fever, DSS: dengue shock syndrome, SD: standard deviation, nd: not done, P: Fisher's exact test, Hct: hematocrit. aMale among DSS patients in VL04-05 vs. VL controls: P = 0.008 bHepatomegaly among DSS patients vs. DHF patients, in HCMC 02-03: OR = 10.74, P<0.0001, in VL 02-03: OR = 10.84, P = 0.008, in VL 04-05:OR = 4.24, P = 0.005 cSecondary infection in DSS VL04-05 vs. HCMC 02-03: P<0.0001, VL04-05 vs. VL02-03: P<0.0001 and in DHF VL04-05 vs. HCMC 02-03: P<0.0001, VL04-05 vs. VL02-03: P = 0.0001