What’s a ‘Pingdemic’ and Why Is the U.K. Having One?

July 19 was designated “Freedom Day” in Britain to mark the end of pandemic lockdowns and progress in the country’s Covid-19 vaccination program. But just as Britain relaxes most restrictions, it’s facing a third wave of coronavirus infections as the highly-contagious delta variant spreads across the country. A record number of people who’ve come into contact with an infected person are self-isolating, most of them having been “pinged” by the National Health Service’s contact-tracing app. The “p

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