WATCH: Can my phone tell if I’ve been near someone with COVID-19?

By Hari Sreenivasan

One of the ways to decrease the spread of COVID-19 is through contact tracing, meaning once someone tests positive, finding everyone that individual has come into contact with and warning them.

But right now, that means if you tested positive, at best, you’d only know be able to identify your friends and family, not any strangers who may have been close to you.

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