Dengue fever is passed on by a mosquito bit, mostly the Aedes aegypti mosquito (or “tiger mosquito”). There are four types of the dengue virus, and the infection causes a wide range of symptoms, including fever, headache, pain behind the eyes, muscle and joint pain, and rash. People infected with dengue often also experience long-term fatigue.Dengue occasionally develops into a life-threatening form (known as severe dengue), which causes abdominal pain and vomitting, breathing difficulty and a decrease in of blood platelets that can lead to internal bleeding.
ABOUT 2.5% OF THOSE INFECTED BY SEVERE DENGUE DIE, AND THERE IS NO CURE FOR THE INFECTION.
Many people infected by the virus a first time show few or no symptoms, but they can still contribute to the transmission of the virus if bitten by a mosquito. Having been infected once does not protect you from the virus. In many cases, the second time you get dengue, the symptoms are more severe.