Coronavirus timeline: Tracking the critical moments of COVID-19

The outbreak has caused citywide quarantines, infections aboard cruise ships and cancellations of major international events.
Patients wait to be transferred from Wuhan No. 5 Hospital to Leishenshan Hospital, the newly built hospital for COVID-19 coronavirus patients, in Wuhan. China, on March 3, 2020.AFP - Getty Images

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By Robin Muccari and Denise Chow

From citywide quarantines to infections aboard cruise ships to cancellations of major international events, the global public health emergency caused by the coronavirus has been unfolding rapidly and dramatically. The virus, which causes a disease known as COVID-19, emerged in Wuhan, China, late last year, but it has since spread to at least 110 countries.

Full coverage of the coronavirus outbreak

茄枝视频Here's how the outbreak has evolved: