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PBS News Hour
How Ebola advances represent 'resounding scientific success'
Recently, the FDA formally approved the first vaccine to prevent the Ebola virus. The advance comes at a crucial time, as Democratic Republic of Congo is suffering an outbreak that has lasted over a year and a half and sickened more than 3,000. But the death toll would be much higher without the unprecedented rate of medical progress in treatment. Special correspondent Monica Villamizar reports.
