As much of the globe moves on from COVID-19, the nation at the epicenter of the pandemic is doubling down on its ultra-strict restrictions. Chinese cities from Wuhan to Xining have locked down districts and sealed up buildings in response to new outbreaks in the world’s most populated country, according to social media posts. China reported more than 1,000 new COVID-19 cases for three consecutive days this week, far less than the 260,000 reported in the US last week, but enough for a government clampdown in parts of the totalitarian country. In Wuhan, where the world’s first COVID outbreak was...