1. A pneumonia outbreak associated with a new coronavirus of probable bat origin

2. World Health Organization. Statement on the second meeting of the International Health Regulations (2005) Emergency Committee regarding the outbreak of novel coronavirus (2019-nCoV).

3. WHO. WHO Director-General’s opening remarks at the media briefing on COVID-19-11 March 2020. 2020. Available from: https://www. who.int/dg/speeches/detail/who-directorgeneral-s-opening- remarks-at-the-mediabriefing-on-covid-19–11-march-2020. accessed March 11, 2020.

4. Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study