Ebola is spreading at lightning speed across Liberia says the group Doctors without Borders.

SOUNDBITE: EMERGENCY COORDINATOR, LINDIS HURUM, SAYING:

"The number is going up rapidly. Faster than what we thought, forcing us to adapt our plans and our strategy on a daily basis.

Lindi Hurum, the group's emergency coordinator in Monrovia says they're struggling to keep up with a growing demand for treatment.

SOUNDBITE: EMERGENCY COORDINATOR, LINDIS HURUM, SAYING:

"We opened this centre a week ago and it's completely full today. We are desperately trying to get more beds, we have bulldozers and rub halls getting up.

Part of the reason the group is facing such huge numbers is that they're the primary medical shop in town.

SOUNDBITE: EMERGENCY COORDINATOR, LINDIS HURUM, SAYING:

"The healthcare system has more or less broken down. Hospitals have closed, the clinics are closed, some of them have reopened but the staff is afraid to go back because