What to Know About the New Omicron Variant
Is XBB.1.5 common? Worldwide, XBB.15 is still fairly rare. As of early January, it accounted for less than 1 percent of coronaviruses being sequenced. For now, it is most common in certain hot spots, like the northeastern United States, where it makes up about three-quarters of new cases. Is XBB.1.5 a cause for serious concern? […]