Dengue fever is a potentially life-threatening viral infection transmitted through the bite of infected mosquitoes. About 1 in 4 people infected with the virus will experience symptoms ranging from mild to severe.⁠ ⁠ Approximately half of the world's population lives in areas vulnerable to dengue fever, particularly in hot and humid tropical and subtropical climates. Dr. Stacey Rizza, a Mayo Clinic infectious diseases specialist, explains symptoms and treatment options. ⁠ ⁠ Learn more: https://m