STAT June 5, 2020
South Korea confirmed dozens of new Covid-19 cases last month, most of them linked to an individual who had visited several nightclubs in Seoul’s Itaewon district before testing positive for the novel coronavirus.
In the next few days, public health officials had to trace more than 7,000 people who had recently visited nightclubs in the same district. It was a task that would be impossible with conventional, manual contact tracing approaches — and a perfect opportunity to use the technology-enabled track and trace model South Korea had adopted with enthusiasm.
There was one complication, though: Itaewon is home to many LGBTQ-friendly nightclubs. News reports focused on that detail and included the age, gender, location, and movements of the Covid-19 patient...
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