China’s Tianjin tightens control over travel as Omicron spreads
People lining up for Covid-19 tests during a citywide mass testing in Tianjin on Jan 9, 2022.Reuters The Chinese city of Tianjin, with around 14 million people, has tightened exit controls and now requires residents to obtain approval from employers or community authorities before leaving town and a negative Covid-19 test within 48 hours of departure. The...