The death toll from a record-setting Ebola outbreak in West Africa has topped 820. The World Health Organization is warning the epidemic is out of control and could turn “catastrophic.” But at a summit meeting on Friday, WHO Director Margaret Chan said leaders of the three most affected countries — Guinea, Liberia and Sierra Leone — have agreed on a $100 million plan to contain the virus.

WHO Director Margaret Chan: “The presidents of these three countries recognize the serious nature of the Ebola outbreaks in their countries. They are determined to take extraordinary measures to stop Ebola in their countries.”

The measures include deploying troops to the worst affected regions that account for around 70 percent of the Ebola cases.