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NEW YORK, Oct 1 (Reuters) - U.S. stocks edged lower at the open on Wednesday as caution arose following the first diagnosis of a patient in the United States with Ebola.
The Dow Jones industrial average fell 26.78 points, or 0.16 percent, to 17,016.12, the S&P 500 lost 3.41 points, or 0.17 percent, to 1,968.88 and the Nasdaq Composite dropped 9.10 points, or 0.2 percent, to 4,484.29. (Reporting by Ryan Vlastelica; Editing by Bernadette Baum)