WHO Warns Of Urgency To Fight Ebola

The World Health Organization held a press conference to today in response to the escalating Ebola crisis. This comes amid news that an American doctor in Liberia has contracted the deadly virus.

Yesterday, Centers for Disease Control director Tom Frieden said the window of opportunity to contain Ebola is closing and immediate action is needed.

Meantime, Nancy Writebol, a North Carolina missionary who survived Ebola, held a news conference today with her husband David.

Jason Beaubien, NPR's global health and development correspondent, went to the WHO press conference, joins Here & Now's Robin Young with details.