A dengue disease that involves the most severe form of dengue fever, has material basis in Dengue virus [NCBITaxon:12637] with four serotypes (Dengue virus 1, 2, 3 and 4), which are transmitted by Aedes mosquito bite. The infection has symptom easy bruising, has symptom blood spots, has symptom bleeding gums, and has symptom nosebleeds. It is accompanied by circulatory collapse, involves hypotension, narrow pulse pressure (less than or equal to 20mm Hg), or frank shock. The shock occurs after two to six days of symptoms, followed by collapse, weak pulse, and blueness around the mouth.