A mobile COVID-19 testing site is seen in New York, the United States, on Aug. 31, 2021. (Xinhua/Wang Ying)
A man receives COVID-19 test at a mobile testing site in New York, the United States, on Aug. 31, 2021. (Xinhua/Wang Ying)
A man registers at a mobile COVID-19 testing site in New York, the United States, on Aug. 31, 2021. (Xinhua/Wang Ying)
Photo taken on Aug. 31, 2021 shows a mobile COVID-19 testing site in New York, the United States. (Xinhua/Wang Ying)