More Than 3,000 Confirmed Cases of Ebola and New Vaccine Being Tested

Health officials worried Ebola epidemic could sicken up to 20,000 people.
2:14 | 08/28/14

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Transcript for More Than 3,000 Confirmed Cases of Ebola and New Vaccine Being Tested
To a possible new weapon against the ebola outbreak, for the first time a new vaccine being put to a crucial human test, today staggering new Numbers in west Africa, more than 3,000 confirmed cases the disease blamed for at least 1,552 deaths. ABC's chief medical editor, Dr. Richard Besser, is back in the hot zone. Reporter: Today as doctors CDC director on the ground here, monitoring the outbreak. If we don't stop it here, we'll be dealing with it for years around the world. But we can still stop it. Reporter: In the capital, quarantines are in place. We traveled to a vast slum. This is part of the city that has been quarantined, it's the poorest part of the city, the most ebola. Violence has been escalating here as access to food and water has diminished. ABC has been reporting since the outbreak began. In some places, just a piece of rope marks the boundary of the quarantine zone. In this compound for seven days? Yes. Eight days? Why? It's like you're in prison? How many people have you lost from ebola? I have lost three person now. Reporter: What is the solution? How will ebola end? I don't see ebola ending now. The best solution now, I think, for me, to let me out. Give me a way out. Reporter: A call to the international medical community is just hearing. It strikes how much work it's going to take to get this thing under control. Right now the virus clearly is winning. There are signs that the international community is gearing up for a fight.

This transcript has been automatically generated and may not be 100% accurate.

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