(Yicai Global) April 3 --Shanghai reported four more imported novel coronavirus cases yesterday, taking the eastern metropolis' total confirmed Covid-19 cases to 526, the city's health commission said this morning.

All the new additions are Chinese citizens. Two arrived in Shanghai from Russia, one from the United Kindom and the fourth from the Netherlands, according to the commission.

Authorities have traced 23 people who had been in contact with the patients during their journeys and placed them under quarantine, it added.

Some 13 suspected cases, also involving people who have recently been overseas, are undergoing further tests.

The commission logged no new suspected or confirmed domestically transmitted cases yesterday. It also reported no new asymptomatic cases under observation in the city yesterday.

Shanghai has confirmed 526 Covid-19 cases so far, including 187 from overseas. Some 171 of the patients who brought the virus into the city from outside China are being treated, with one in serious condition, and 16 have been discharged upon recovery.

Of the 339 local cases, six have died, five are in critical condition and one is stable. A total of 327 patients have fully recovered and been discharged from hospital, the commission said.

Editor: James Boynton