Table 1. Coronavirus disease 2019 outbreaks related with the cold-chain food and food packaging in 2020.

Date	City	Place	Zero patient	Cold-chain food contamination
June 11	Beijing	Wholesale market	Employee	Imported salmon
July 22	Dalian	Dock	Dockworker	Food packaging of imported fish
September 24	Qingdao	Dock	Dockworker	Food packaging of imported frozen cod
November 8	Tianjin	Cold storage	Stevedore	Food packaging of frozen pork