China’s newest coronavirus cluster hints the virus may be mutating.

  • Chinese doctors are seeing the virus in the northeast region manifest differently among patients.
  • Patients in Jilin and Heilongjiang appear to be carrying the virus for a longer period of time before showing symptoms.
  • The delayed onset is making it harder for authorities to catch cases before they spread.
  • The virus is believed to have stemmed from contact with infected persons from Russia.
  • 46 cases have been reported over the past two weeks spread across three cities — Shulan, Jilin city and Shengyang.
  • Scientists do not fully understand if the virus is changing in significant ways.