People spend time on the National Mall in Washington, D.C., the United States, on Oct. 25, 2021. Advisers to the U.S. Food and Drug Administration (FDA) are set for a key meeting Tuesday on whether to recommend the Pfizer-BioNTech COVID-19 vaccine for children ages 5 to 11, as experts predicted younger children will be eligible for the vaccine in early November. (Photo by Ting Shen/Xinhua)
