U.S. doctor stricken with Ebola said to be improving

Dr. Kent Brantly (R) speaks with colleagues at the case management center on the campus of ELWA Hospital in Monrovia, Liberia in this undated handout photograph courtesy of Samaritan's Purse. REUTERS/Samaritan's Purse/Handout via Reuters

ATLANTA (Reuters) - An American doctor stricken with the deadly Ebola virus while in Liberia and brought to the United States for treatment in a special isolation ward is improving, the top U.S. health official said on Sunday.

Dr. Kent Brantly was able to walk, with help, from an ambulance after he was flown on Saturday to Atlanta, where he is being treated by infectious disease specialists at Emory University Hospital.