Wall Street set for weekly loss on gathering virus fears

NEW YORK (Reuters) - Wall Street lost ground on Friday as mounting worries over the scope of the coronavirus outbreak overshadowed positive corporate earnings.

All three major U.S. stock averages extended their losses after the Centers for Disease Control and Prevention confirmed the second case of the virus on U.S. soil, this time in Chicago.

For the holiday-shortened week, all three indexes are on course to post a decline with the Nasdaq set to snap a six-week winning streak.