Amy Cheng

Qingdao city officials say no new infections were identified. The extraordinary testing effort followed the appearance of a small cluster of COVID-19 cases centered in a city hospital.

Measures to mitigate the coronavirus pandemic have devastated China's economy, shutting factories and urban jobs that millions of migrant workers depend upon. Many now seek jobs in their villages.

China's diplomacy has taken a strikingly "undiplomatic" turn, analysts say, as it counters U.S. accusations of starting the coronavirus.

After a 76-day lockdown, the city's reopening includes the return of its tradition of eating a medley of morning snacks.

Zhang Hai's father died of the coronavirus on Feb. 1 and was cremated. Ashes can now be picked up, but the government requires a chaperone for visits to the crematorium as well as for burials.

China makes millions of masks. But ramping up production is tricky. "Making masks is not as easy as you imagine," a pharmaceutical executive in China says.

Strict quarantine measures have prevented 300 million migrant workers from returning to work. Now local authorities are trying to get businesses going again. The main bottleneck: a shrunken workforce.

American schools are advising students to avoid travel to China, and some are working to evacuate students already there. The U.S. issued a "Do Not Travel" advisory for China on Thursday.

Transportation in and out of the city of 11 million is being shut down as cases of the coronavirus are being reported throughout China and abroad. Wuhan is believed to be the contagion's epicenter.

Some schools are nixing language about academic freedom and are stressing loyalty to the ruling party, which plants spies to denounce professors and students who voice their minds, academics say.