Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
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(CNN) – President Barack Obama on Tuesday announced a "major increase" in the U.S. response to the Ebola outbreak in West Africa.
Obama said experts know how to fight this disease, but international leaders need to move fast, as the cases continue to multiply rapidly.
But public health experts tell CNN they knew how to fight the earlier Ebola outbreaks, in rural and remote areas: go in, isolate sick individuals, find out with whom they had close contact, follow them, and isolate them if they get sick.
This is in many ways a new disease. It is still the same Ebola virus, but the outbreak has gotten so out of control, breaking down the contact tracing process in many areas, that fighting this disease is different from outbreaks fought in the past.
CNN's Elizabeth Cohen, and Michelle Kosinski report in the video above.