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In page COVID-19 pandemic in Shanghai:

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On 3 March, Shanghai allowed logistics personnel, service personnel, maintenance personnel of public utilities, and courier personnel to enter communities if they showed a green "On-Demand Code", normal body temperature measurement, registration, and received residents' consent.[citation needed] From 4 March, Shanghai announced that all passengers who had traveled or lived in Korea, Italy, Iran, Japan and other countries within 14 days before entering Shanghai will implement home or centralized health surveillance for 14 days.[9] From 13 March, the policy was expanded to eight countries: South Korea, Italy, Iran, Japan, France, Spain, Germany, and the United States.[10]