US STOCKS-Futures fall on weak Amazon results, Ebola worries
October 24, 2014 at 07:49 AM EDT
NEW YORK, Oct 24 (Reuters) - U.S. stock index futures dipped on Friday, putting the S&P 500 on track to trim its weekly gain, following disappointing results from Amazon and as the first diagnosed case of Ebola in New York City raised concerns about the spread of the virus.