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“IT IS POSSIBLE TO STOP THE EPIDEMIC ” That’s the message splashed atop a website built by a University of Oxford team this week to share new research on the spread of the novel coronavirus Below that hopeful statement comes a big caveat: To stop the virus’ spread, health officials need to find and isolate the contacts of infected people—lots of them—and fast Such contact tracing is a mainstay of infectious disease control But the Oxford team is one of several now advocating for a new approach: tapping into cellphone location data to track the spread of infection and warn people who may have been exposed
Kelly Servick (Sun,) studied this question.