Why COVID's XBB.1.5 'Kraken' Variant Is So Contagious
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Scientific American Content: Global
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Jan 10, 2023, 6:08:22 PM1/10/23
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A new variant of the virus that causes COVID has mutations that make it more transmissible, but vaccines are still likely to protect against severe disease
SARS-CoV-2, the virus that causes COVID.
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