Rite Aid and Walgreens are among the pharmacies that have cut store hours and, in some cases, shuttered locations as a result of labor shortages in some markets around the U.S. “It becomes a vacuum where you have patients who can’t get the services they used to get,” said Cheryl Wisseh, an assistant professor of pharmacy at the University of California, Irvine. “It’s affecting older adults, those of low socioeconomic status and racial and ethnic minorities the most.”