A healthcare worker wheels a patient into an ambulance outside a hospital in New York, the United States, on Jan. 18, 2021. The total number of COVID-19 cases in the United States topped 24 million on Monday, according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. U.S. COVID-19 case count rose to 24,018,793 with a total of 398,307 deaths, as of 2:21 p.m. local time (1921 GMT), according to the CSSE tally. (Photo by Michael Nagle/Xinhua)
