Coronavirus: Where does it come from and how did it mutate to infect humans?

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 first identified in Wuhan, Hubei, China, in December 2019, and was recognised as a pandemic by the World Health Organization (WHO) on 11 March 2020. As of 25 March, more than 445,000 cases of COVID-19 have been reported in more than 190 countries and territories, resulting in more than 19,700 deaths and more than 112,000 recoveries. COVID-19 Coronavirus Pandemic.