XBB.1.5 Omicron subvariant spread to northwest states, now dominant in all US regions

XBB.1.5 Omicron subvariant now dominant in all US regions CIDRAP

In its new variant estimates today, the Centers for Disease Control and Prevention (CDC) said the XBB.1.5 Omicron subvariant is now dominant the northwestern region, making it the most

Also, the more transmissible variant expanded its footprint in areas where it already dominates, and in the United States as a whole, it accounts for an estimated 80.2% of samples, up steadily from 74.7% the previous week.

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