XBB sublineages comprise nearly 99% of circulating coronavirus in the U.S.

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Link. Doesn’t say why. Next vaccine to focus on XBB.

“From October through early June, about 75,000 COVID-19 deaths have been reported nationally. That’s more than double the average annual number of flu deaths in the decade preceding the COVID-19 pandemic.”

COVID less lethal than flu but far more common.