A volunteer is on duty at the entrance of a residential community in Jiugong Town, Daxing District, Beijing, capital of China, June 21, 2020. Beijing has strengthened community-level disease prevention and control in response to the resurgence of domestically transmitted COVID-19 cases. (Xinhua/Li Xin)

A community worker disinfects the entrance of a residential community in Jiugong Town, Daxing District, Beijing, capital of China, June 21, 2020. Beijing has strengthened community-level disease prevention and control in response to the resurgence of domestically transmitted COVID-19 cases. (Xinhua/Li Xin)

A community worker disinfects the area for deliveries at a residential community in Jiugong Town, Daxing District, Beijing, capital of China, June 21, 2020. Beijing has strengthened community-level disease prevention and control in response to the resurgence of domestically transmitted COVID-19 cases. (Xinhua/Li Xin)

Residents have temperature taken beforing entering a community in Jiugong Town, Daxing District, Beijing, capital of China, June 21, 2020. Beijing has strengthened community-level disease prevention and control in response to the resurgence of domestically transmitted COVID-19 cases. (Xinhua/Li Xin)

A resident has his temperature taken before entering a community in Jiugong Town, Daxing District, Beijing, capital of China, June 21, 2020. Beijing has strengthened community-level disease prevention and control in response to the resurgence of domestically transmitted COVID-19 cases. (Xinhua/Li Xin)

A community worker disinfects dustbins at a residential community in Jiugong Town, Daxing District, Beijing, capital of China, June 21, 2020. Beijing has strengthened community-level disease prevention and control in response to the resurgence of domestically transmitted COVID-19 cases. (Xinhua/Li Xin)