Ebola virus
Ebola virus or Ebola virus disease (EVD), often shortened to Ebola, is a very dangerous virus. It belongs to the family Filoviridae. Four different types of Ebola virus can cause a severe disease which is often fatal. Ebola infection causes hemorrhagic fever which starts suddenly. "Hemorrhagic" means that the victim will bleed a lot, inside and outside of their body. The virus attacks almost every organ and tissue of the human body, causing multiple organs to fail at once. Out of every 100 people who get Ebola, on average 25 to 90 die.