HLA-A and Dengue hemorrhagic fever: In a Jamaican population, Brown et al. found a significant positive association of HLA-A*24 with dengue infection versus HC (P<0.05) (RR=11.5) [5]. Nguyen et al. found in a Vietnamese population that HLA-A*24 had a positive association with DHF (OR=1.66 and 95% CI=1.19-2.32) [7].