Close contacts of COVID-19 cases can undergo home quarantine if their living conditions meet quarantine requirements or opt to go to a quarantine facility for five days, Shanghai authorities announced on Wednesday as part of its latest adjusted COVID-19 prevention and control measures.

To those currently under centralised quarantine with eligible living condition, they can be transferred back to home to finish isolation.

Requirements of a COVID test upon arrival are lifted for domestic travellers to the city.

Notification saying "less than five days upon arrival" on domestic traveler's health and venue code pages will be canceled, while prohibition of their entries into certain public venues such as malls and supermarkets will also be lifted.

The new protocol will take effect since Thursday.