MacCannell: less than 0.5 percent of current transmission in the United States involves the U.K. variant, known as B.1.1.7. It has a suite of 17 mutations …
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#CDC: No sign of homegrown U.S. coronavirus variant, but scientists need to look harder – WP
washingtonpost.com/health/cdc-no-…
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#CDC: No sign of homegrown U.S. coronavirus variant, but scientists need to look harder – WP
washingtonpost.com/health/cdc-no-…