In this April 26, 2021, photo, a nursing student administers the Moderna COVID-19 vaccine at a vaccination center at UNLV, in Las Vegas. Thrown off-stride to reach its COVID vaccination goal, the Biden administration is sending A-list officials across the country, devising ads for niche markets and enlisting community organizers to persuade unvaccinated people to get a shot. (AP Photo/John Locher) **FILE**
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