In this file photo taken Saturday, Oct. 25, 2014, a health worker, right, briefs another, left, on the use of their Ebola security gear before working with diseased Fanta Kone at a Ebola virus center in Kayes, Mali. The last Ebola patient being treated in Mali has survived the disease and been released, the Health Ministry said Friday, Dec. 12, 2014. (AP Photo/Baba Ahmed, File)
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