Astronomy is a science that studies celestial objects such as the Sun, planets, moons, stars, nebulae & galaxies.
Definition of Ebola - an infectious and frequently fatal disease marked by fever and severe internal bleeding, spread through contact with infected body Definition of Ebola - an infectious and frequently fatal disease marked by fever and severe internal bleeding, spread through contact with infected body
Ebola Virus Disease Quick Facts. 1  Ebola virus disease (EVD), also referred to as Ebola hemorrhagic fever, is a severe and often fatal disease in humans and nonhuman primates such as monkeys, chimpanzees, and gorillas.