FILE PHOTO: Walmart administers COVID-19 vaccines as part of Federal

    FILE PHOTO: A person waits at a Walmart Pharmacy where the Moderna coronavirus disease (COVID-19) vaccine is available as Walmart and other major U.S. pharmacies take part in the Federal Retail Pharmacy Program, to increase vaccinations in the U.S. in West Haven, Connecticut, U.S., February 17, 2021. REUTERS/Mike Segar