Dengue fever is caused by a virus transmitted by the Aedes mosquito. It is a common and potentially fatal mosquito-borne illness. The female Aedes mosquito bites during the day and lays eggs in clean, stagnant water, where its life cycle continues. To prevent transmission, individuals should remove all sources of stagnant water to prevent Aedes breeding and go on "mozzie wipe out exercises." Proper precautions when away from home, such as covering drains and containers, can also help prevent breeding.