The coronavirus mutation first identified in the United Kingdom last year is now the dominant strain circulating in the U.S.,U.S. Centers for Disease Control and Prevention Director Rochelle Walensky said Wednesday, and it may be the driving force behind the upward tick in new infections over the past few weeks.
New clusters of the B.1.1.7 variant have been detected in connection with daycare centers and youth sports, Walensky said during a White House press briefing Wednesday.
The CDC has also seen a rise in hospitalizations of people in their 30s and 40s, which Walensky blamed on B.1.1.7 and other variants.
Research indicates the B.1.1.7 variant is more infectious and dangerous than previous coronavirus strains.
White House coronavirus advisor Dr. Michael Osterholm said over the weekend that the variant also appears to more easily infect children and young people, and