Coronavirus is spreading like wildfire. Just four months after it was first detected, it has spread to over 180 countries, infecting more than 1 million people.
At this moment, at least 20 vaccines are in development around the globe. But there is still so much we don't know about the virus – how it spreads, how it affects its victims.?
The following cases shed light on why we should remain cautious about this slowly unraveling mystery.
On-camera reporter: Serena Dong
Scriptwriter: Serena Dong
Video editor: Zhang Wanbo
Filmed by Fu Gaoliang
Chief editor: Wang Xin
Producer: Wen Yaru
Director: Zhang Shilei
Supervisor: Fan Yun
