Melanie Shurka (R), owner and chef of the middle eastern restaurant Kubeh, delivers free meals for healcare workers to a hospital amid the COVID-19 pandemic in New York, the United States, on April 16, 2020. The number of COVID-19 cases in the United States topped 660,000 as of Thursday evening with more than 32,000 deaths, according to the Center for Systems Science and Engineering at Johns Hopkins University. (Photo by Michael Nagle/Xinhua)

A loading platform leading into a refrigerated trailer serving as a makeshift morgue is seen outside a hospital amid the COVID-19 pandemic in New York, the United States, on April 16, 2020. The number of COVID-19 cases in the United States topped 660,000 as of Thursday evening with more than 32,000 deaths, according to the Center for Systems Science and Engineering at Johns Hopkins University. (Photo by Michael Nagle/Xinhua)

A loading platform leading into a refrigerated trailer serving as a makeshift morgue is seen outside a hospital amid the COVID-19 pandemic in New York, the United States, on April 16, 2020. The number of COVID-19 cases in the United States topped 660,000 as of Thursday evening with more than 32,000 deaths, according to the Center for Systems Science and Engineering at Johns Hopkins University. (Photo by Michael Nagle/Xinhua)

A closed sign is displayed in a restaurant during the coronavirus pandemic in New York, the United States, on April 16, 2020. The number of COVID-19 cases in the United States topped 660,000 as of Thursday evening with more than 32,000 deaths, according to the Center for Systems Science and Engineering at Johns Hopkins University. (Photo by Michael Nagle/Xinhua)

A healthcare worker wheels a patient into the emergency room of a hospital amid the COVID-19 pandemic in New York, the United States, on April 16, 2020. The number of COVID-19 cases in the United States topped 660,000 as of Thursday evening with more than 32,000 deaths, according to the Center for Systems Science and Engineering at Johns Hopkins University. (Photo by Michael Nagle/Xinhua)