W.H.O. reports more than 20,000 could be infected before outbreak can be brought under control.
Helicopter said to have been shot down.
Riot police training academy said to be overrun by militants.
Police in the capital fired live rounds and tear gas to disperse stone-throwing crowd.
Night-time curfew and quarantine imposed in bid to halt outbreak.
The 17 patients were traced before turning themselves in at a treatment center, official said.
Most serious warning to date by the organization that Ebola could spread to East Africa.
Strikes are part of France's efforts to combat al-Qaeda in the region.
Resolution calls for sanctions against those involved in recent violence.
Move by World Health Organization may hamper efforts to boost global response to outbreak of the disease.
Copyright © 2014. All rights reserved.