Dengue is caused by a virus transmitted by the Aedes aegypti mosquito as it bites. The male mosquitoes are modified so their offspring die before reproducing.
Dengue fever, spread by the Aedes aegypti mosquito is common in Asia and Latin America. Symptoms include high fever, joint pains and nausea, but in severe cases, it can lead to internal bleeding, liver enlargement, circulatory shutdown and death. There is no known cure or vaccine.