Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
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(CNN) – Americans are focused on our country's efforts to treat ebola patients once they've reached the United States.
But the way to roll back the spread of Ebola is to stop it at its roots, and that means West Africa.
Specifically countries such as Guinea, Sierra Leona and Liberia, some thousands of American troops are going to be deployed in that area, and international aid organizations are on the ground as well.
International Rescue Committee CEO David Miliband deals with catastrophes on a regular basis, says the outbreak has the potential to spread even further.
"We're in a deadly race against time," Miliband, former foreign secretary for the United Kingdom, said.
To date, the world's largest outbreak of Ebola has killed more than 3,400 people in Guinea, Liberia and Sierra Leone - the nations hardest hit. Since March, more than 7,400 people have contracted Ebola in those nations, according to the World Health Organization. A handful of cases have been reported in Nigeria and Senegal as well.
"The danger is the exponential spread of the disease means that we could be talking of tens or hundreds of thousands (of deaths) within in a matter of months," Miliband said.
The CDC says infections could reach 1.4 million in four months.
For more of our interview with International Rescue Committee CEO David Miliband, check out the video above.