Creating a timeline that details the earliest COVID-19 cases in Wuhan

In a Perspective, Michael Worobey provides an overview of the crucial events that occurred between December 2019 and January 2020 in Wuhan, China, creating a timeline detailing the earliest cases of COVID-19, their connections to the Hunan Market where live animals were sold, and the events that led to SARS-CoV-2’s formal identification as a novel virus.