Dengue hemorrhagic fever is characterized by:
Fever that lasts from 2 to 7 days with General signs and symptoms of Nausea, Vomiting, Abdominal pain and headache, followed by:
• Hemorrhagic manifestations
• Bleeding nose or gums
• Internal bleeding
• The blood vessels may start to leak which may lead to failure of the circulatory system and shock followed by death.