Dengue fever is a disease caused by a family of viruses transmitted by mosquitoes. It causes high fever, severe headache, pain behind the eyes, joint and muscle pain, and sometimes a rash. The incubation period is 3-14 days after exposure. There is no specific treatment for dengue fever since it is caused by a virus. Treatment focuses on preventing dehydration with intravenous fluids and painkillers. For severe cases, blood transfusions or hospitalization may be needed. Prevention efforts include wearing protective clothing, using mosquito nets and traps, avoiding standing water where mosquitoes breed, and staying indoors at dawn and dusk.