Dr. Rochelle Walensky CDC

Dr. Rochelle Walensky, director of the Centers for Disease Control and Prevention (CDC), predicted Sunday that a new strain of the coronavirus that was first identified in the United Kingdom and has since been detected in the U.S. may be the "dominant strain" here by the end of March. In an interview with "Face the Nation," Walensky said there are more than 1,000 cases of the U.K. variant, known as […]