Only last week, the UN health agency had said only Guinea was on track to meet the targets for getting the deadly Ebola outbreak under control in the three hardest-hit West African countries.
But at a news conference in Geneva, WHO's Dr. Bruce Aylward said the organization had revised its conclusion based on more analysis of its data. Sierra Leone also probably met the targets in the west of the country, he said, and likely will improve to the 70 per cent target nationwide "in the coming weeks."
"You can catch up with Ebola even on this scale," he said. However, he added that it "doesn't mean you're automatically going to get to zero" cases and eliminate unsafe burials without more cooperation among organizations, communities, citizens and country leaders.
It is also important for people who have changed their behavior to reduce the disease risks to avoid becoming complacent, he said.
WHO launched its Ebola plan two months ago to isolate 70 percent of the sick and safely bury 70 percent of the victims in Guinea, Liberia and Sierra Leone by December 1.