(Yicai Global) April 8 -- Shanghai had detected five more imported novel coronavirus cases as of yesterday, taking the city's total confirmed Covid-19 cases to 543, the local health commission said this morning.

All the new additions are Chinese citizens. Two of them arrived in Shanghai from Russia, another two traveled from the UK, and the fifth one came from Japan, according to the commission.

Authorities have traced 52 people who had been in contact with these people 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.

The commission logged no new suspected or confirmed domestically transmitted cases yesterday. It also reported no asymptomatic cases under observation as of yesterday.

The city reported a new death yesterday as an 83-year-old man who had been in critical condition passed away, bringing the total death tally to seven, according to the commission.

Shanghai has confirmed 543 Covid-19 cases so far, including 204 traveling from overseas. Some 126 of the patients who brought the virus into the city from outside China are currently being treated, with one in serious condition, and 78 have been discharged upon recovery.

Of the 339 local cases, four are in critical condition, and 328 patients have fully recovered and been discharged from hospitals, the commission said.

Editor: Emmi Laine