CDC Director Rochelle Walensky said in an interview with NPR on Wednesday that the nation is fighting headwinds in the fight to end the pandemic from new variants of the virus and efforts to rollback coronavirus restrictions.

Dr. Rochelle Walensky, who has been selected to serve as director of the Centers for Disease Control and Prevention speaks during an event at The Queen theater in Wilmington, Del., Tuesday, Dec. 8, 2020, to announce President-elect Joe Biden’s his health care team. (AP Photo/Susan Walsh)