My friend contacted Dengue 4 years ago, was sick for 1 week and got better. But two years ago had a reoccurence of his symptoms. We decided that it could be chronic dengue, where the virus is living in the liver and gave the medicine accordingly. As stated his symptoms reoccured as the dengue was removed from the liver, he got better the next day and now is dengue-free. Just out of curiosity I tried the medicine too, but had no reaction, as I have never had Dengue. But this served to give us confidence in the way the medicine works. Thankyou so much for providing this amazing medicine.