Those entering China via Shanghai have been ordered to be put under strict observation for seven days after 14 days of quarantine in designated hotels, the municipal anti-epidemic authority said Monday.

Those with Shanghai as their destination and a fixed residence in the city with only one person or a family have been asked to "not leave their home unless necessary" during the 7-day quarantine.

Others will be transferred to designated hotels for the 7-day observation after being discharged from the 14-day quarantine, the authority said.