"Dengue fever is an acute viral infection caused by a bite from mosquitoes carrying dengue virus. The primary form of dengue fever is characterized by a skin rash and a high fever with severe pain in the head and muscles. Other symptoms may include shaking chills, diarrhea, and vomiting. Secondary forms of the virus are dengue hemorrhagic fever and dengue shock syndrome, which may be caused by the same dengue virus and which symptoms may include fever, bleeding under the skin, red spots on the legs, and bleeding into the intestines. Most cases of dengue fever are contracted in tropical areas of the world. Symptoms of dengue fever can be treated with pain relievers with acetaminophen, by resting, and by drinking plenty of fluids. Follow the links below to find WebMD's comprehensive coverage about how dengue fever is contracted, the symptoms of dengue fever, how dengue fever is treated, and more."