 Remember COVID? Not only is it still around, but CBS's Stacey Lynn reports it's riding a bit of a wave right now. Infections are spreading in 43 states right now. Infectious disease specialist Dr. William Schaffner says the newest variants are grandchildren of Omicron. The most common variant. And he says they're very, very contagious. But because most of us have had some form of COVID or a vaccination before, what we call