A senior adviser to Sierra Leone's president says a third doctor has died from Ebola, marking a setback in the country's fight against the virulent disease.
Presidential adviser Ibrahim Ben Kargbo said Wednesday that Dr. Sahr Rogers had been working in a clinic in the eastern town of Kenema when he contracted the virus.
News of his death came as a Senegalese epidemiologist working in Sierra Leone was evacuated to Germany for medical treatment. He had been doing surveillance work for the World Health Organization.