Authorities in Sierra Leone said a doctor there has tested positive for Ebola. He’s been identified as Dr. Godfrey George and was taken to the capital Freetown for treatment after reporting that he felt unwell.

He’s the fifth doctor in the country to become infected with Ebola. The other four physicians have died. Five hundred health-care workers have contracted the virus. They are considered most at-risk, as the disease spreads by bodily fluids.

For more now on the ongoing Ebola epidemic in West Africa, CCTV America talked with Jane Orient. She’s a doctor and the executive director of the Association of American Physicians and Surgeons.