US President Donald Trump speaks on vaccine development in the Rose Garden of the White House in Washington, DC on May 15, 2020. From left: National Institutes of Health Director Francis Collins, Health and Human Services Secretary Alex Azar, Response coordinator for White House Coronavirus Task Force Deborah Birx, Director of the National Institute of Allergy and Infectious Diseases Anthony Fauci, and Defense Secretary Mark Esper. (Photo by MANDEL NGAN / AFP) (Photo by MANDEL NGAN/AFP via Getty Images)
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