XBB.1.5 FAQ: What you should know about the latest Omicron subvariant

XBB.1.5 is the latest Omicron subvariant to spread rapidly through the U.S. It is, of course, more transmissible and more capable of evading immunity from past infections than other versions of Omicron that have gone before it, as this lineage continues mutating. Scientists are still learning about XBB.1.5; it emerged from the U.S. during the holiday season, which has posed surveillance challenges. But we know enough to say that this variant is bad news for an already overstretched healthcare system.

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Several respiratory viruses might spread widely this fall; here’s how we should track them

As you might have guessed from the last couple weeks of National numbers posts, I am anticipating that the U.S. will see a new COVID-19 surge this fall, along with potential surges of the flu and other respiratory diseases. Here’s why it’s worth worrying about possible surges, and some thoughts on better tracking these viruses in the future.

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