BUZZ-Tekmira Pharmaceuticals Corp: Ebola drug shows promise
** Canadian drugmaker's U.S.-listed shares up 8.4 pct at $25.60 premarket
** Company's Ebola drug shows promising signs after being administered to doctor infected with virus in West Africa, Nebraska Medical Center said on Monday
** Drug, code named TKM-Ebola, was authorized to be used by U.S. and Canadian regulators in patients with confirmed or suspected Ebola infection
** Drug among several experimental Ebola drugs to be tested in West Africa to fast track trials, global health charity Wellcome Trust said
** Up to Monday's close, stock had risen 65.5 pct since Aug. 7, when U.S. Food and Drug Administration lifted partial hold on Tekmira's Ebola drug
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