Symptoms Of Dengue And Flu . Mild dengue fever causes a high fever Many people, especially children and teens, may experience no signs or symptoms during a mild case of dengue fever. Read about treatment and symptoms, like rash and fever, get vaccine info, and learn about outbreaks. Dengue Fever: Causes, Symptoms, Home Remedies, Prevention ... (Betty Craig) Dengue fever is a mosquito borne viral infection that has flu like symptoms which can also be fatal in some cases. Sometimes, symptoms are mild and can be mistaken for those of the flu or another viral infection. Dengue fever (breakbone fever) is a mosquito-borne disease. Dengue fever can be both mild or severe. The Dengue symptoms usually begin within four to seven days after the initial infection and usually varies depending on the severity of the infections. Dengue fever -Symptoms, Treatment, Causes & Home Remedies ... ...