WHO outlines next steps in Ebola crisis
By Holly Yan
(CNN) -- Ebola vaccine testing could start in the next few weeks, the World Health Organization said Tuesday, as health officials scramble to quell the virus that has killed more than 4,500 people.
The goal is to launch vaccine trials in West Africa by January, said Dr. Marie Paule Kieny, WHO's assistant director general for health systems and innovation.
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