Photos: Fauci, Azar, others receive Moderna's COVID-19 vaccine Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, gestures after receiving his first dose of the COVID-19 vaccine at the National Institutes of Health, Tuesday, Dec. 22, 2020, in Bethesda, Md. (AP Photo/Patrick Semansky, Pool)
Photos: Fauci, Azar, others receive Moderna's COVID-19 vaccine Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, prepares to receive his first dose of the COVID-19 vaccine at the National Institutes of Health, Tuesday, Dec. 22, 2020, in Bethesda, Md. (AP Photo/Patrick Semansky, Pool)
Photos: Fauci, Azar, others receive Moderna's COVID-19 vaccine Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, rolls up his sleeve as he prepares to receive his first dose of the COVID-19 vaccine at the National Institutes of Health, Tuesday, Dec. 22, 2020, in Bethesda, Md. (AP Photo/Patrick Semansky, Pool)
Photos: Fauci, Azar, others receive Moderna's COVID-19 vaccine Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, speaks as he holds up his sleeve in preparation to receive his first dose of the COVID-19 vaccine at the National Institutes of Health, Tuesday, Dec. 22, 2020, in Bethesda, Md. (AP Photo/Patrick Semansky, Pool)
Photos: Fauci, Azar, others receive Moderna's COVID-19 vaccine Health and Human Services Secretary Alex Azar receives his first dose of the COVID-19 vaccine at the National Institutes of Health, Tuesday, Dec. 22, 2020, in Bethesda, Md. (AP Photo/Patrick Semansky, Pool)
Photos: Fauci, Azar, others receive Moderna's COVID-19 vaccine Health and Human Services Secretary Alex Azar applauds after receiving his first dose of the COVID-19 vaccine at the National Institutes of Health, Tuesday, Dec. 22, 2020, in Bethesda, Md. (AP Photo/Patrick Semansky, Pool)
Photos: Fauci, Azar, others receive Moderna's COVID-19 vaccine Dr. Francis Collins, director of the National Institutes of Health, receives his first dose of the COVID-19 vaccine at the National Institutes of Health, Tuesday, Dec. 22, 2020, in Bethesda, Md. (AP Photo/Patrick Semansky, Pool)
Photos: Fauci, Azar, others receive Moderna's COVID-19 vaccine Ebenezer Mienza, a healthcare worker at the National Institutes of Health Clinical Center, gestures after receiving his first dose of the COVID-19 vaccine at the NIH, Tuesday, Dec. 22, 2020, in Bethesda, Md. Seated in the foreground is Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases. (AP Photo/Patrick Semansky, Pool)
Photos: Fauci, Azar, others receive Moderna's COVID-19 vaccine Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, speaks with Health and Human Services Secretary Alex Azar before receiving his first dose of the COVID-19 vaccine at the National Institutes of Health, Tuesday, Dec. 22, 2020, in Bethesda, Md. (AP Photo/Patrick Semansky, Pool)
Photos: Fauci, Azar, others receive Moderna's COVID-19 vaccine Dr. Anthony Fauci, left, director of the National Institute of Allergy and Infectious Diseases, speaks with Health and Human Services Secretary Alex Azar before receiving his first dose of the COVID-19 vaccine at the National Institutes of Health, Tuesday, Dec. 22, 2020, in Bethesda, Md. (AP Photo/Patrick Semansky, Pool)
