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- April 26, 2021

SAN FRANCISCO, CA - JAN. 5: UCSF-Abbott Viral Diagnostics and Discovery Center lab director Dr. Charles Chiu demonstrates the process of extracting samples of COVID-19 for sequencing while working in his lab in San Francisco, Calif. Tuesday, January 5, 2021. Public health experts are increasingly concerned about the impact of highly contagious coronavirus variants. UCSF is running tests on the strains of the virus circulating in California to help identify new strains. (Jessica Christian/The San Francisco Chronicle via Getty Images)

Could enhanced COVID tests help U.S. track virus variants?

By Marion Renault, STAT

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