A new COVID-19 subvariant, XBB.1.5, is picking up speed nationwide. Dr. Marc Siegel and University of Arizona medical professor Dr. Shad Marvasti reveal what’s worrisome about the contagious strain.
A new COVID-19 subvariant, XBB.1.5, is picking up speed nationwide. Dr. Marc Siegel and University of Arizona medical professor Dr. Shad Marvasti reveal what’s worrisome about the contagious strain.