Explanation of the name COVID-19 (since a lot of people did not get the memo): COVID-19 = CoronaVirus Disease 2019 (because it started in 2019). While yes WHO officially received reports of it on December 31 and began investigating in January 2020. Scientists have since come to the conclusion that the virus first jumped to humans as early as October 6th 2019; or even as early as August.