Dengue Hemorrhagic Fever : Symptoms, Prevention, and Vaccine แชร์ What is Dengue Hemorrhagic Fever? Dengue fever is an infectious disease caused by the Dengue virus, transmitted primarily by the Aedes aegypti mosquito. The severity of the disease can range from mild fever and no symptoms to more severe complications, such as low platelet count, bleeding, hepatitis, and in extreme cases, shock, which can be fatal. High-Risk Groups: The individuals at higher risk for severe dengue symptoms include: Young children Older adults People with obesity (BMI > 30 kg/m²) Individuals with malnutrition (albumin levels less than 2.5 g/dL) Diabetic patients Patients with kidney disease Those who have been infected with dengue in the past (secondary infections with different strains can be more severe) Dengue Infection and Immunity: The Dengue virus has 4 strains (DENV-1, DENV-2, DENV-3, DENV-4). When infected by one strain, the body develops lifelong immunity to that...