At least 131 people are believed to have been killed and 531 infected in the outbreak, according to health authorities in central Africa. An American missionary was among those who tested positive for the deadly disease.

Health officials are racing to contain a rapidly expanding outbreak of Ebola in Africa. At least 116 suspected deaths and more than 300 other cases have been reported in the…

The head of the WHO said he was "deeply concerned by the scale and speed of the epidemic."

The Ebola disease, which the World Health Organization calls a severe, often fatal illness affecting humans and other primates, has claimed 130 lives as of May 19, according to…