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Over-the-counter rapid antigen tests can help slow the spread of COVID-19 -- here's how to use them effectively

  • Written by Zoë McLaren, Associate Professor of Public Policy, University of Maryland, Baltimore County
Over-the-counter rapid antigen tests can help slow the spread of COVID-19 -- here's how to use them effectivelyRapid antigen COVID-19 tests, designed for use at home, can show results in 15 minutes. Ellen Moran via Getty Images

The rise of the highly transmissible delta variantaround the U.S. has increased demand for rapid antigen COVID-19 tests that can be purchased from a pharmacy without a prescription, used at home, school or work and that give results...

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