Dengue fever is spread by mosquitos. Mild dengue fever symptoms usually begin four to ten days after being bitten by an infected mosquito. Symptoms causes a high fever and flu-like symptoms.

• Headache

• Muscle, bone or joint pain

• Nausea

• Vomiting

• Pain behind the eyes

• Swollen glands

• Rash

Most people recover within a week or so. In some cases, symptoms worsen and can become life-threatening. This is called severe dengue, dengue hemorrhagic fever or dengue shock syndrome.