Freetown - 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 on 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 Organisation.
Ebola is spread by direct contact with the bodily fluids of people sick with the virus. Health workers have been the most vulnerable because of their proximity to patients. The WHO says more than 120 health workers have died in the four affected countries.
