COVID-19 subvariant XBB.1.5 leaves doctors concerned

A new strain of COVID-19 has taken hold in the Northeastern U.S., according to the Centers for Disease Control and Prevention. The subvariant of omicron, named XBB.1.5, has doctors concerned about another potential wave of COVID-19 cases following the busy holiday travel season. The CDC projected about 40% of confirmed U.S. COVID-19 cases are caused by this new strain.