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Contact Tracing Is Key To Reopening. We're Not There Yet
12 Menit
24 April 2020
The U.S. may need 100,000 people trained in the public health practice of contact tracing — tracking and isolating people who've been in contact with someone who tests positive for the coronavirus. NPR health policy reporter Selena Simmons-Duffin explains how it works, and why it's a key part of the fight against the pandemic.
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