People spend time at the National Mall in Washington D.C., the United States, May 6, 2021. U.S. COVID-19 case count rose to 32,603,556 with a total of 580,054 deaths, as of 8:20 p.m. Eastern Time (ET) on May 6, according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. (Photo by Ting Shen/Xinhua)
People spend time at the National Mall in Washington D.C., the United States, May 6, 2021. U.S. COVID-19 case count rose to 32,603,556 with a total of 580,054 deaths, as of 8:20 p.m. Eastern Time (ET) on May 6, according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. (Photo by Ting Shen/Xinhua)
A boy runs at the National Mall in Washington D.C., the United States, May 6, 2021. U.S. COVID-19 case count rose to 32,603,556 with a total of 580,054 deaths, as of 8:20 p.m. Eastern Time (ET) on May 6, according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. (Photo by Ting Shen/Xinhua)
A man rides bicycle at the National Mall in Washington D.C., the United States, May 6, 2021. U.S. COVID-19 case count rose to 32,603,556 with a total of 580,054 deaths, as of 8:20 p.m. Eastern Time (ET) on May 6, according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. (Photo by Ting Shen/Xinhua)