The spread of Ebola remains "intense" in most of Sierra Leone even as things have improved somewhat in the two other countries hardest hit, the World Health Organization says.
Some 168 new confirmed cases emerged in a single week in Sierra Leone's capital of Freetown recently, according to a WHO report.
"The numbers are still rising and the transmission is persistent and widespread," said Amadu Kamara, the U.N.'s Ebola crisis manager in Sierra Leone. "Rapid and coordinated response are needed to overcome the spread of the Ebola disease."
The WHO report released late Wednesday indicated that Sierra Leone had the lowest percentage of Ebola patients who had been isolated — only 13 percent. By comparison, that figure was 72 percent in Guinea.