U.S. COVID-19 deaths top 500,000 -- Johns Hopkins University

Ambulances park in front of Maimonides Medical Center in the Brooklyn Borough of New York, the United States, Feb. 22, 2021. The United States reached the grim milestone of half a million coronavirus deaths on Monday, according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. (Photo by Michael Nagle/Xinhua)