Beijing carried out mass testing for the coronavirus yesterday after a
new outbreak in the city that prompted travel warnings across the
country amid fears of a resurgence of the disease.
The deadly contagion had been brought largely under control in China
through strict lockdowns that were imposed early this year but have
since been lifted.

But a fresh cluster linked to a wholesale food market in the capital
has sparked widespread alarm and raised the specter of a return to
painful restrictions.

The National Health Commission reported fifty-seven new infections on
Sunday, of which thirty-six were local transmissions in Beijing, all
linked to the Xinfadi market.
Another two domestic infections were in northeastern Liaoning province
and were close contacts of the Beijing cases.
The nineteen others infected were among Chinese nationals returning from abroad.