News Digging > Science > Breezy Explainer: What is COVID’s new variant XBB.1.5, responsible for over 40% of US cases?
Breezy Explainer: What is COVID’s new variant XBB.1.5, responsible for over 40% of US cases?
Breezy Explainer: What is COVID's new variant XBB.1.5, responsible for over 40% of US cases?,XBB and XBB.1.5, two recombinants of the BA.2 variation, jointly accounted for 44.1% of all Covid cases in the nation.

Breezy Explainer: What is COVID’s new variant XBB.1.5, responsible for over 40% of US cases?

XBB and XBB.1.5, two recombinants of the BA.2 variation, jointly accounted for 44.1% of all Covid cases in the nation.