(Yicai Global) April 30 -- Shanghai has discovered two more imported novel coronavirus cases as of yesterday, taking the eastern city's confirmed case total to 647, the municipal health commission said this morning.

Both of the new additions are Chinese citizens. One of them, who had been working in Singapore, traveled back to Shanghai on April 27. The other patient arrived in the city on April 28 after studying in the US, according to the commission.

Authorities have traced 38 people who had been in contact with these two during their journeys and placed them under quarantine, the public health authority added.

A total of 13 people who were imported Covid-19 cases were released from hospitals yesterday after full recovery.

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

Among the confirmed 308 imported Covid-19 cases, 42 patients are being treated, with two of them severely ill, while 266 people have been discharged upon recovery.

The commission added six suspected cases, also involving people who have recently been overseas, to the category of those who are undergoing further tests.

Among the total of 339 local cases, seven have died, one is being treated, and 331 patients have fully recovered and been discharged from hospitals, according to the commission.

Editor: Emmi Laine