Ebola and Marburg viruses are responsible for well-documented outbreaks of severe human hemorrhagic fever, with resultant case mortalities ranging from 23% for Marburg virus. Ebola virus infection has no sexual predilection, but men and women differ with respect to the manner in which direct exposure occurs. Because most cases of Ebola virus infection have occurred in sub-Saharan Africa, most patients have been black. However, no evidence exists for a specific racial predilection.
Signs and symptoms typically begin abruptly within five to 10 days of infection with Ebola or Marburg virus. Early signs and symptoms include: Fever, Severe headache, Joint and muscle aches, Chills, Weakness etc. No antiviral medications have proved effective in treating infection with either virus. Supportive hospital care includes: Providing fluids, maintaining blood pressure, providing oxygen as needed, replacing lost blood and treating other infections that develop.