Legal basis: People's Republic of China (PRC) Law on the Prevention and Control of Infectious Diseases.
(1) Conduct epidemiological investigation on the epidemic situation of infectious diseases, put forward suggestions on delineating epidemic spots and epidemic areas according to the investigation results, carry out sanitary treatment on polluted places, conduct medical observation on close contacts in designated places and take other necessary preventive measures. And put forward the epidemic situation control plan to the administrative department of health (2) When an infectious disease breaks out and spreads, carry out sanitary treatment on the epidemic spot and epidemic area, put forward the epidemic situation control plan to the administrative department of health, and take measures according to the requirements of the administrative department of health (3) guide the lower-level disease prevention and control institutions to implement the prevention and control measures of infectious diseases, and organize and guide the relevant units to deal with the epidemic situation of infectious diseases.
Article 41 The local people's governments at or above the county level may take isolation measures against the persons in the places where cases of Class A infectious diseases occur or in specific areas within the places, and report to the people's governments at the next higher level at the same time; The people's government at a higher level that receives the report shall immediately make a decision on approval or disapproval. If the people's government at a higher level makes a decision not to approve, the people's government that implements the isolation measures shall immediately lift the isolation measures.