
How Wuhan is Using Digital Gatekeeping to Reopen
Clip: Season 47 Episode 10 | 2m 47sVideo has Closed Captions
To reopen the city, Wuhan, China is using digital gatekeeping to contact trace. Here’s how
Anyone entering or leaving a building or public space in Wuhan is required to scan special location-marking codes with their phone.
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National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.

How Wuhan is Using Digital Gatekeeping to Reopen
Clip: Season 47 Episode 10 | 2m 47sVideo has Closed Captions
Anyone entering or leaving a building or public space in Wuhan is required to scan special location-marking codes with their phone.
Problems with Closed Captions? Closed Captioning Feedback
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National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.