China has imposed some of the toughest lockdowns in the world to stop Covid-19. One city sealed apartment doors, leaving residents with dwindling food and medicine. One village tied a local to a tree after he left home to buy cigarettes. Beijing forced people to leave their pets behind when they went into quarantine.Few officials spoke up against the excesses, given the central government’s obsession with its anti-coronavirus campaign. That hasn’t stopped Dr. Zhang Wenhong.Dr. Zhang, an infectious-disease specialist and perhaps China’s most trusted voice on Covid-19, has spoken out publicly against excessive lockdowns, though …
