The deadliest outbreak of Ebola virus on record has sparked fears that the killer virus could spread from West Africa to other regions and continents. The current Ebola outbreak in West Africa began in Guinea in December 2013. From there, it quickly spread to Liberia and Sierra Leone. Cases also appeared in Senegal and Nigeria, and there was another outbreak in the Democratic Republic of the Congo. Today, Liberia is at the center of the epidemic, with more than 3,000 cases of infection.
About half of them have been fatal. Key facts Ebola virus disease (EVD), formerly known as Ebola haemorrhagic fever, is a severe, often fatal illness in humans. The virus is transmitted to people from wild animals and spreads in the human population through human-to-human transmission. The average EVD case fatality rate is around 50%. Case fatality rates have varied from 25% to 90% in past outbreaks.…