Abstract
Group of viral hemorrhagic fevers (VHF) present a range of disorders from relatively moderately serious to human life threatening entities whose mortality reaches high levels. There are classified as acute viral febrile diseases characterized by nausea, myalgia and fatigue, dominating with general alteration of vessel permeability and regulation.
Symptoms of bleeding often occur, particularly in severe cases which are usually diffuse and present a symptom of general vessel injury rather than life-threatening condition.