Health & Safety How Public Health Officials Use 'Contact Tracing' To Track An Epidemic's Spread 4:27pm January 24, 2020 Health Global Health Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2020 NPR. To see more, visit https://www.npr.org. 300x250 Ad More All Things Considered National Furniture maker Tom Moser dies at 90 by Chloe Veltman Health & Safety Planned development threatens view of Paranal Observatory by John Bartlett 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate
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