Photo taken on Jan. 18, 2021 shows snacks on sale at a supermarket in Tonghua, northeast China's Jilin Province. Local authorities have been paying attention to the supply of food in efforts to prevent and control COVID-19. (Xinhua/Xu Chang)

Customers buy fruits at a supermarket in Tonghua, northeast China's Jilin Province, Jan. 18, 2021. Local authorities have been paying attention to the supply of food in efforts to prevent and control COVID-19. (Xinhua/Xu Chang)

A customer buys delicatessen at a supermarket in Tonghua, northeast China's Jilin Province, Jan. 18, 2021. Local authorities have been paying attention to the supply of food in efforts to prevent and control COVID-19. (Xinhua/Xu Chang)

A staff member replenishes the shelves at a supermarket in Tonghua, northeast China's Jilin Province, Jan. 18, 2021. Local authorities have been paying attention to the supply of food in efforts to prevent and control COVID-19. (Xinhua/Xu Chang)