Well, dengue really causes a spectrum of illness. In some cases, some people might not even have any symptoms at all, and some people may have fever, rash, and body aches that last about a week, and that’s typical dengue, and that’s what people refer to when they’re just talking about dengue. Dengue hemorrhagic fever is a type of what’s called severe dengue in which, after the usual symptoms of ordinary dengue appear, symptoms of leaky blood vessels and destruction of platelets occur. So blood clotting abnormalities occur and the patients go into shock because of all of the fluid loss that occurs, and that shock can be fatal.