Figure 3From: Evaluation of host and viral factors associated with severe dengue based on the 2009 WHO classificationEvaluation of the 1997 and 2009 WHO classifications to identify SD. (A) The percentage of laboratory-confirmed dengue cases classified as DF, DHF, or DSS in the traditional scheme (1997 WHO), or classified as D–WS, D + WS, or SD according to the 2009 WHO scheme is shown. (B) Correspondence between traditional and revised classification.Back to article page