Health and Human Services Secretary Alex Azar, center, speaks during a news conference on Operation Warp Speed and COVID-19 vaccine distribution, Tuesday, Jan. 12, 2021, in Washington. Standing alongside Azar from left are Dr. Moncef Slaoui, chief science adviser to Operation Warp Speed, Dr. Robert Redfield, director of the Centers for Disease Control and Prevention, and U.S. Army Gen. Gustave Perna, chief operating officer of Operation Warp Speed. (AP Photo/Patrick Semansky, Pool)
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