In an aerial view, some of the hundreds of people without appointments stand in line outside the mass coronavirus vaccination site at Hagerstown Premium Outlets on April 07, 2021 in Hagerstown, Maryland. The site opened to people without appointments Tuesday and, after waiting in line for hours, only 200 people without appointments were able to get vaccinated against COIVID-19. Site administrators hope to correct course Wednesday and serve more walk-ups. (Photo by Chip Somodevilla/Getty Images)
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