hemorrhagic fever, a group of viral infections characterized by fever, chills, headache, malaise, and respiratory or GI symptoms, followed by capillary hemorrhages and, in severe infection, by oliguria, kidney failure, hypotension, and possibly death. Many forms of the disease occur in specific geographic areas. See also dengue fever, dengue hemorrhagic fever shock syndrome, Ebola virus disease, Lassa fever, Marburg virus disease.
