英国广播公司:世界卫生组织总干事陈冯富珍表示,埃博拉病毒在西非地区的蔓延失控,如果情况继续恶化将造成灾难性后果.但她说,如果管理得好,还是可以阻止病毒的进一步扩散.
BBC News: World Health Organization (WHO) head Margaret Chan has said the Ebola outbreak in West Africa is spreading faster than efforts to control it.
She told a summit of regional leaders that failure to contain Ebola could be "catastrophic" in terms of lives lost.
But she said the virus, which has claimed 728 lives in Guinea, Liberia and Sierra Leone since February, could be stopped if well managed.
Ebola kills up to 90% of those infected. It spreads by contact with infected blood, bodily fluids, organs - or contaminated environments. Patients have a better chance of survival if they receive early treatment. Initial flu-like symptoms can lead to external haemorrhaging from the eyes and gums, and internal bleeding that can lead to organ failure.
A US relief agency is repatriating two of its American staff who have contracted the virus in Liberia. Hundreds of US Peace Corps volunteers have already been evacuated from the West African countries.