China has scrubbed the viral video showing the impact of the prolonged coronavirus lockdown on Shanghai’s residents from the internet, triggering an online backlash. About 25 million residents in Shanghai have been shut in their homes since early April, as officials rush to curb its worst-ever outbreak since the beginning of the pandemic. The city has struggled to provide fresh vegetables and other essentials to those in lockdown, while patients have reported trouble accessing regular medical care as thousands of health staff were deployed to covid testing and treatment. The issues were chronicled in a six-minute video titled “Voice of...