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2021 has brought news of emerging SARS-CoV-2 genetic variants that increase transmissibility. Will they diminish vaccine efficacy and lead us to lose pandemic control? University of Michigan\'s Adam Lauring, MD, PhD, a molecular virologist who uses evolutionary theory to study viral transmission and pathogenesis, joins JAMA\'s Q&A series to explain the variants and what they mean for public health. Recorded February 4, 2021.
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