The Conversation: From delta to omicron, here’s how scientists know which coronavirus variants are circulating in the US

The Conversation: From delta to omicron, here’s how scientists know which coronavirus variants are circulating in the US. “How do scientists know what versions of the coronavirus are present? How quickly can they see which viral variants are making inroads in a population? Alexander Sundermann and Lee Harrison are epidemiologists who study novel approaches for outbreak detection. Here they explain how the genomic surveillance system works in the U.S. and why it’s important to know which virus variants are circulating.”

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