Wuhan novel coronavirus: background information

Information on Wuhan novel coronavirus including epidemiology, virology and clinical features.



On 31 December 2019, WHO was informed of a cluster of cases of pneumonia of unknown cause detected in Wuhan City, Hubei Province, China. A novel coronavirus was subsequently identitified from patient samples.

This document contains information for clinicians and the public on the epidemiology and virology of Wuhan novel coronavirus (WN-CoV).

Published 16 January 2020
Last updated 22 January 2020 + show all updates
  1. Updated with latest data.

  2. Updated with latest data.

  3. First published.