‘A Covid-19 tracing software tool has appeared in the settings of both Android phones and iPhones as part of an update of their operating systems. The "exposure notification" tool is switched off by default, and is not a tracing app itself. It enables an app to run in the background while still using Bluetooth. This lets the app measure the distance between two handsets - and then alert the phone owner if someone near them later tests positive for Covid-19.’
Read here (BBC, June 20, 2020)
Worst ever Covid variant? Omicron
John Campbell shares his findings on Omicron. View here (Youtube, Nov 27, 2021)
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