England and Wales' Covid-19 app has now launched, joining earlier efforts by Northern Ireland and Scotland. Apple and Google's automated contact-tracing technology is being used to tell people to self ...

A study published today in Nature shows that the NHS COVID-19 contact tracing app successfully predicted people's risk of catching the virus following exposure to an infected person. Researchers at ...

It’s summer 2021. You rent a house in the countryside with a bunch of friends for someone’s birthday. The weather’s gorgeous that weekend, so mostly you’re all outside—pool, firepit, hammock, etc.—but ...

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