(Yicai  Global) Feb. 13 -- China's mainland stock markets closed lower after  remaining in negative territory for the most part of the day while the  rapidly spreading novel coronavirus worried investors.

The  Shanghai Composite Index fell 0.71 percent to 2,906.07. The Shenzhen  Component Index finished 0.70 percent down at 10,864.32. The ChiNext  Price Index, which tracks growth enterprises listed in Shenzhen, dropped  0.99 percent to 2,064.60.

Central  China's Hubei province, the epicenter of the outbreak, added 14,840  confirmed cases of the new virus yesterday, which is the largest daily  increase so far. 

Editor: Emmi Laine