(Yicai Global) May 10 -- Shanghai reported two more imported novel coronavirus cases yesterday, taking the eastern metropolis' total confirmed Covid-19 cases to 659, the city's health commission said this morning.

Both the new additions are Chinese citizens. They traveled back to Shanghai from the Unites States on May 6 and May 7 respectively, according to the commission.

Authorities have traced 40 people who had been in contact with the patients during their journey and placed them under quarantine, the commission said.

Three people who were confirmed imported Covid-19 cases were released from hospitals yesterday after a full recovery, according to the commission.

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

Among the confirmed 320 imported Covid-19 cases, 26 patients are being treated, with two in serious condition, and 294 have been discharged upon recovery, the commission said.

It added two suspected cases, also involving people who have recently been overseas, are undergoing further tests.

Of the 339 local cases, seven have died and 332 patients have fully recovered and been released from hospital, the commission said.