It will take "about six months" to get the upper hand on the Ebola outbreak in West Africa, the president of health organisation Medecins Sans Frontieres has said.
Joanne Liu told a news briefing in Geneva after a 10-day trip to the region: "If we don't stabilise Liberia, we will never stabilise the region.
"Over the next six months we should get the upper hand on the epidemic. This is my gut feeling," she said.
Liu added that the World Health Organisation "needs to take leadership" of the situation and said more experts were needed on the ground.
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