In this Tuesday, Nov. 17, 2020, file photo, manager Yllka Murati waits for a delivery driver to pick up takeout orders behind a partition displaying a sign to remind customers to wear a mask, at the Penrose Diner, in south Philadelphia. Despite the expected arrival of COVID-19 vaccines in just a few weeks, it could take several months — probably well into 2021 — before things get back to something close to normal in the U.S. and Americans can once again go to the movies, cheer at an NBA game or give Grandma a hug. (AP Photo/Matt Slocum, File)