A health worker takes a swab sample from a man to be tested for Covid-19 coronavirus at a makeshift testing site in Zhongguancun in Beijing on April 26, 2022. - Beijing on April 26 launched mass coronavirus testing for nearly all its 21 million residents, as fears grew that the Chinese capital may be placed under a strict lockdown like Shanghai. (Photo by Jade GAO / AFP) (Photo by JADE GAO/AFP via Getty Images)
