Rumor: Express deliveries are the source of the rapid spread of COVID-19 in Shanghai. Many couriers have tested positive for the virus.

Fact: All postal express employees in Shanghai undergo nucleic acid tests as well as antigen self-tests on a regular basis and no cases related to express deliveries have been found, said Shanghai Municipal Postal Administration on Tuesday.

All courier parcels are given a thorough disinfection before they are delivered, according to official documents.

During the city's latest COVID-19 screenings, parcels are being delivered in a contactless manner. Couriers must wear protective gear, and residents should also take personal precautions when handling express parcels.

Jiang Ziyi contributed to this story.