New COVID Variant NB.1.8.1 Detected in the U.S.—What to Know
Variant Detected Transmissibility Symptoms Current Spread NB.1.8.1 Jan. 2025 Possibly higher Similar to other COVID variants 22 countries First detected in late January, NB.1.8.1 is a descendant of the Omicron JN.1 lineage, and has seen a sharp rise in global cases in recent weeks. According to the most recent data from the WHO, NB.1.8.1. accounted…