BEIJING, CHINA - MAY 12: A guard wears protective gear as he stands next to signs advising visitors they must show a negative nucleic acid test within the last 48 hours, at the gate of a local park on May 12, 2022 in Beijing, China. China is trying to contain a spike in coronavirus cases in the capital Beijing after hundreds of people tested positive for the virus in recent weeks, causing local authorities to initiate mass testing, mandate proof of a negative PCR test within 48 hours to enter many public spaces, to close schools and retail stores, ban gatherings and inside dining in all restaurants, and to lockdown many neighbourhoods in an effort to maintain the country's zero COVID strategy. (Photo by Kevin Frayer/Getty Images)
