MIP-1β and IFN-γ were independent variables associated disease outcome as determined by a logistic regression model (Table 2 and Figure 2 ). While MIP-1β was increased during mild dengue with odds ratio (OR) of 0.181 and confidence interval (CI) 0.045-0.72, IFN-γ was associated with severity with OR of 1.138 (CI, 1.0541-1.245).