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Bluetooth phone apps for tracking COVID-19 show modest early results
By Aradhana Aravindan & Sankalp Phartiyal
First version of Apple and Google's contact tracing API should be available to developers next week
By Darrell Etherington
Apple and Google pledge to shut down coronavirus tracker when pandemic ends
By Russell Brandom
All coverage
What Is Contact Tracing? How It Will Be Used for COVID-19
By Alejandro de la Garza
How coronavirus could test California's commitment to privacy
By Ben Christopher