Aedes Mosquito - Dengue on Flickr.
Dengue is transmitted by the bite of an Aedes mosquito infected with any one of the four dengue viruses. Symptoms appear in 3–14 days (average 4–7 days) after the infective bite. Dengue fever is a severe, flu-like illness that affects infants, young children and adults. There is no specific treatment for dengue fever. Dengue haemorrhagic fever is a potentially lethal complication but early clinical diagnosis and careful clinical management by experienced physicians and nurses often save lives.- WHO