China’s ‘Zero Covid’ Efforts Come With a Cost

China’s top leader has declared that the country has “overcome” the impact of the coronavirus, even as sporadic lockdowns continue in various areas and officials order greater scrutiny of imported frozen food and children’s clothes — both extremely unlikely sources of contagion. The stringent, if sometimes impractical, restrictions stem from China’s struggle to maintain its “zero Covid” strategy. Other nations have gradually loosened restrictions as they vaccinate more people, allow more gatherings with limits and bolster their health care systems for those who get sick. By contrast, the Chinese Communist…