Africa's most populous nation Nigeria was on Monday declared officially Ebola free but warned that it remained vulnerable as long as the virus was raging elsewhere in west Africa.
New York's mayor said Friday that the city's health system is fully equipped to handle Ebola after a doctor who had been infected in West Africa was hospitalised in America's largest city.
The World Health Organization says millions of doses of two experimental Ebola vaccines could be ready for use in 2015 and five more experimental vaccines will start being tested in March.
In Ebola-hit communities in west Africa, hope of stopping the deadly virus may seem far away at times.
A UN staff member in Sierra Leone has died from Ebola, the third employee from the world organization to succumb to the deadly virus, the UN spokesman said Monday.
Belgium's Brussels Airport on Monday became the latest European hub to screen passengers for the deadly Ebola virus when a flight landed from Guinea via Sierra Leone, an airport spokeswoman said.