Legal basis: Law of People's Republic of China (PRC) on the Prevention and Control of Infectious Diseases Article 40 When the disease prevention and control institutions discover the epidemic situation of infectious diseases or receive a report on the epidemic situation of infectious diseases, they shall take the following measures in time:
(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, 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 epidemic control plans 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 an epidemic control plan to the administrative department of health, and take measures according to the requirements of the administrative department of health;
(three) to guide the disease prevention and control institutions at lower levels to implement the prevention and control measures of infectious diseases, and to organize and guide the relevant units to deal with the epidemic situation of infectious diseases.