(Yicai Global) April 11 -- On the basis of previous mass testing, Shanghai continued to carry out citywide Covid-19 screening over the weekend and will bring in separate measures for different risk areas depending on the results.

The city will classify areas into three kinds, depending on the level of risk, and lift lockdown in communities with no new infections for 14 straight days.

Shanghai reported 914 new cases and 25,173 asymptomatic infections yesterday, the local health authorities disclosed today.

A swab sample is taken from a resident of Minhang district on April 9.

A man registers for a test by showing an online code, valid for up to 30 days, after Shanghai started using a new code system on April 9 to improve sampling efficiency.

Staff scan a test code from a mobile phone.

Sampling lasted well into the night in some communities on April 9.

A volunteer guides a family toward a line on April 9.

Editors: Dou Shicong, Peter Thomas