My Fiancee had Dengue Shock Syndrome and almost died.
I think it is a scandal that Western Drug Companies can't be bothered to look for a cure for Dengue, but it's all down to Potential Profit.
Unlike Maleria which affects some European Countries and the USA, Dengue is only found in poorer countries in Asia and SE Asia, and these countries can't afford to pay Big Bucks for a cure.