Transmission
The Aedes aegypti mosquito is the primary vector of dengue. The virus is transmitted to humans through the bites of infected female mosquitoes. After virus incubation for 4-10 days, an infected mosquito is capable of transmitting the virus for the rest of its life. Infected humans are the main carries and multipliers of the virus, serving as a source of the virus for uninfected mosquitos. Patients who are already infected with the dengue virus can transmit the infection (for 4-5 days; maximum 12) via Aedes mosquitoes after their first symptoms appear. The Aedes aegypti mosquito lives in urban habitats and breeds mostly in man-made countries. Unlike other mosquitoes Ae. aegypti is a day-time feeder; its peak biting period are early in the morning and in the evening before dusk. Female Ae. aegypti bites multiple people during each feeding period.