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  Dengue and chikungunya What is Dengue? Dengue pronounced den ‘gee is a viral disease. Dengue can be caused by infection with any one of four closely related Dengue viruses. DENV 1, DENV 2, DENV 3, DENV 4. How does it spread? The dengue viruses are transmitted to humans by the bite of an infected AEDES. Characteristics of the AEDES mosquito? One distinct physical feature ( black and white stripes on its body and legs), Hence also called as tiger Mosquito. bites during the day, Lays its eggs in clean, stagnant water. Did you know? Only the female AEDES mosquito as it needs the protein in blood to develop it eggs. the mosquito becomes infective approximately seven days after it has bitten a person carrying the virus. Once infected, A mosquito remains infective for life and passes on the virus to the eggs it lays. Peek biting time is at dawn and dusk – 2 hour after sunrise and 2 hour before sunset. AEDES mosquito: fast facts The average life span of an aedes mo