A worker in protective suit stands watch near the barricades set up for COVID-19 tests at a testing site after authorities ordered a third round of three consecutive coronavirus tests for residents in the Chaoyang district on Sunday, May 8, 2022, in Beijing. China is staying with a "zero-COVID" strategy of lockdowns and other restrictions despite the economic costs and the fact that many other countries around the world are loosening up and trying to live with the virus. (AP Photo/Andy Wong)