A senior walks with a child riding a bike in Main Street Park near the Brooklyn Bridge in New York, the United States, on April 27, 2020. As of Monday afternoon, the United States reported more than 980,000 COVID-19 cases with over 55,000 deaths, according to the Center for Systems Science and Engineering at Johns Hopkins University. (Photos: Xinhua)

People wearing face masks walk past a farmer's market in New York, the United States, on April 27, 2020. As of Monday afternoon, the United States reported more than 980,000 COVID-19 cases with over 55,000 deaths, according to the Center for Systems Science and Engineering at Johns Hopkins University.

Jane's Carousel is seen closed in the Brooklyn borough of New York, the United States, on April 27, 2020. As of Monday afternoon, the United States reported more than 980,000 COVID-19 cases with over 55,000 deaths, according to the Center for Systems Science and Engineering at Johns Hopkins University.

The streets and sidewalks are empty in front of the New York Stock Exchange (NYSE) in the Financial District of New York, the United States, on April 27, 2020. As of Monday afternoon, the United States reported more than 980,000 COVID-19 cases with over 55,000 deaths, according to the Center for Systems Science and Engineering at Johns Hopkins University.

The streets and sidewalks are almost empty on the Times Square in New York, the United States, on April 27, 2020. As of Monday afternoon, the United States reported more than 980,000 COVID-19 cases with over 55,000 deaths, according to the Center for Systems Science and Engineering at Johns Hopkins University.