A medical worker collects a swab sample from a man at a COVID-19 testing site on Times Square in New York, the United States, May 17, 2022.(Photo: Xinhua)

A medical worker collects a swab sample from a man at a COVID-19 testing site on Times Square in New York, the United States, May 17, 2022.(Photo: Xinhua)

A COVID-19 testing site is seen on Times Square in New York, the United States, May 17, 2022.(Photo: Xinhua)

A U.S. flag is seen on Times Square in New York, the United States, May 17, 2022.(Photo: Xinhua)