Covid Boosters Can’t Outpace New Mutations. Here’s Why They Still Work

The latest vaccines are designed to target XBB.1.5, the dominant variant throughout much of 2023—until now.

Covid Boosters Can’t Outpace New Mutations. Here’s Why They Still Work
The latest vaccines are designed to target XBB.1.5, the dominant variant throughout much of 2023—until now.
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