(Yicai Global) March 28 -- Shanghai has detected 17 more new imported coronavirus cases to bring the eastern Chinese financial hub's total confirmed Covid-19 cases to 485 as of yesterday, the city's health commission said this morning.

Among the new additions, 12 are Chinese citizens, including a mother and son from Zhejiang province, two are French nationals, while the rest are nationals of the UK, Spain and Canada, according to the commission.

Six arrived in Shanghai from France, five traveled from the UK and two from Italy, while the others came from the US, Canada, Switzerland and Singapore respectively, the commission said.

Authorities have traced 88 people who had been in contact with these infected persons during their journeys and placed them under quarantine, it added.

Some 16 suspected cases, also involving people who have recently been overseas, are undergoing further tests.

No new local cases or suspected domestically transmitted cases were reported yesterday, per the commission.

Among the city's total of 485 patients, five have died, nine are in critical condition, and 137 are stable, while 334 have fully recovered and been discharged from hospital, the commission noted.