Why Bluetooth apps are bad at discovering new cases of COVID-19
Illustration by Grayson Blackmon and Alex Castro / The Verge
Yesterday, we talked about the things that need to happen before we can begin to slowly re-open our cities: hospital bed supply catches up fully with demand; testing catches up fully with demand; we develop programs for quarantining new cases and informing their contacts that they may have been exposed to the disease; and the number of cases declines for 14 consecutive days.
Today let’s zoom in (not Zoom in) on the third point: building systems to enforce quarantine and to trace the contacts of those who get infected. Both are areas where public health officials believe that technology can play a role. But I want to describe why that role might be more limited than you assume — and, according to the experts I’ve spoken with, much less...
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