Disease control and prevention workers collect samples from frozen products in Tianjin's Nankai district on Nov 9, 2020. (PHOTO / CHINA DAILY)

BEIJING - China has put in place strict measures to prevent COVID-19 infections via cold-chain and frozen foods, said a senior epidemiologist Monday.

The measures include strict testing and disinfection at customs, the protection of workers throughout the shipment chains, regular nucleic acid testing for workers in the shipment sector and the inoculation of high-risk groups, said Wu Zunyou, chief epidemiologist with the Chinese Center for Disease Control and Prevention, at a press conference.

Regular nucleic acid testing could detect infections at an early stage and helps nip an epidemic in the bud, Wu said. 

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