What Is Dengue Fever Caused By?

What Is Dengue Fever Caused By? Dengue is a mosquito-borne viral infection, found in tropical and sub-tropical climates worldwide, mostly in urban and semi-urban areas. The virus responsible for causing dengue, is called dengue virus (DENV). What are the warning signs of dengue? Abdominal pain or tenderness. Persistent vomiting. Clinical fluid accumulation. Mucosal bleed. Lethargy