Why were over 14,800 new coronavirus infections confirmed in one day?

03:07

A total of 14,840 new cases of the novel coronavirus were confirmed in one day in Hubei Province, the epicenter of the outbreak, including 13,332 clinically diagnosed cases. As the number soared overnight, so did concern and discussion online.

So what exactly happened? CGTN's Serena Dong explains...

On-camera reporter: Serena Dong

Scriptwriter: Serena Dong

Video editor: Zhang Wanbao

Producer: Wen Yaru

Chief editor: Wang Xin

Supervisor: Zhang Shilei