It was this week, one year ago, that the world started becoming aware of the seriousness of a viral outbreak which would explode into a full-blown global pandemic.

Wuhan, in China, was the first place to go into lockdown.

Al Jazeera's Investigative Unit has obtained videos recorded during the earliest days - which were smuggled out of the country.

Al Jazeera's Phil Rees has this exclusive report.

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