A resident applauds healthcare workers of Coney Island Hospital, on an apartment building in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)

People are seen on the grass beside graves in Green-Wood Cemetery in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)

Healthcare workers wheel a patient to a triage tent at the Maimonides Medical Center in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)

People with bikes wait outside a bike shop in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)

People walk on the Coney Island boardwalk in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)

Healthcare workers wheel a patient to a triage tent at Maimonides Medical Center in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)

People wearing face masks walk through the Green-Wood Cemetery in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)

A patient is wheeled to an ambulance at the Coney Island Hospital in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)

People walk on the Coney Island boardwalk in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)

A banner expressing thanks to healthcare workers is displayed near the Maimonides Medical Center in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)

A digital board signaling "Stay Home" is seen on the Coney Island in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)

A garbage can is filled with personal protective equipment near the Brooklyn Hospital Center in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)

A healthcare worker walks past a flu tent set up at Kingsbrook Jewish Medical Center in the Brooklyn borough of New York, the United States, April 19, 2020. The total number of COVID-19 cases in the United States topped 750,000 Sunday evening, reaching 759,086 as of 8:00 p.m. (0000 GMT on Monday), according to the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. A total of 40,661 people have died of the disease in the country, according to the CSSE. (Photo by Michael Nagle/Xinhua)