This is the most serious warning to date by the WHO that Ebola could spread to East Africa.

The World Health Organization (WHO) has classified Kenya as a "high-risk" country for the spread of the deadly Ebola virus. Kenya was vulnerable because it was a major transport hub, with many flights from West Africa, a WHO official said.

This is the most serious warning to date by the WHO that Ebola could spread to East Africa.

Health experts are battling to contain the outbreak in West Africa, where it has killed more than 1,000 people.

This is the most serious warning to date by the WHO that Ebola could spread to East Africa.