BUZZ-Ebola drug developers: Up after U.S. confirms first case
** Canadian drugmaker Tekmira Pharmaceutical's U.S.-listed shares up 19 pct at $25.25 in extended trading
** BioCryst's shares up 19 pct at $11.60; Sarepta Therapeutics up 4 pct at $22.00; Newlink Genetics Corp up 17 pct at $25.01
** All companies have potential Ebola treatments
** U.S. health officials said on Tuesday the first patient had been diagnosed with the deadly Ebola virus in the country
** The U.S. Centers for Disease Control and Prevention confirmed the diagnosis
** No additional details were immediately available
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