Even so, researchers from China and the US have posted preliminary analyses suggesting that the newest vaccines still effectively defend against JN.1.
The problem, Topol says, "is that young, healthy people interact with at-risk people, and they don't have enough respect for that."
The 2023-2024 booster is not as miraculous as the first 2021 vaccines, but it's still about as good as we generally expect flu shots to be.
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