AdvertisementOutpacing The U.S., Hard-Hit Navajo Nation Has Vaccinated More Than Half Of AdultsApril 26, 2021Rachel TreismanfacebookEmailWorkers greet arrivals at a drive-in vaccination site at University of New Mexico's Gallup campus in Gallup, N.M., on March 23. The Navajo Nation has vaccinated more than half of its adult population, outpacing the U.S. national rate. (Bloomberg via Getty Images)