Fourth Sierra Leone Doctor Contracts Ebola, Health Workers Most At Risk In 'War' On Disease

A fourth doctor from Sierra Leone has tested positive for Ebola and will be evacuated from the country for treatment abroad, according to the Associated Press. Dr. Olivette Busk is the first non-Westerner to be transported out of West Africa, where the ongoing Ebola outbreak has killed more than 2,200 people and infected thousands more, for medical treatment.