Our vaccines are working exceptionally well,” CDC Director Dr. Rochelle Walensky tells @wolfblitzer

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Our vaccines are working exceptionally well,” CDC Director Dr. Rochelle Walensky tells @wolfblitzer

Dr. Rochelle Walensky, Director of the Centers for Disease Control and Prevention, answers questions during a Senate Health, Education, Labor, and Pensions Committee hearing to examine the federal response to Covid-19 and new emerging variants on January 11, 2022 at Capitol Hill in Washington, DC. (Photo by Greg Nash / POOL / AFP) (Photo by GREG NASH/POOL/AFP via Getty Images)