The 2019–20 coronavirus pandemic is an ongoing pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The outbreak was identified in Wuhan, China, in December 2019, declared to be a Public Health Emergency of International Concern on 30 January 2020, and recognized as a pandemic by the World Health Organization on 11 March 2020. As of 17 April 2020, more than 2.15 million cases of COVID-19 have been reported in 210 countries and territories, resulting in more than 145,000 deaths. More than 549,000 people have recovered, although there may be a possibility of relapse or reinfection. The deaths per diagnosed cases varies significantly between countries.