1 is an investigation letter (including close contacts, sub-close contacts, general contacts, key risk personnel, etc.) sent by the superior disease control department or administrative department. );

2. It is a list of epidemic-related personnel in key areas pushed by big data;

3, it is the flow of cases. The time when the investigation information is sent out is uncertain, which may be daytime or early morning. The emergency personnel of CDC need to complete the flow adjustment immediately after receiving the investigation letter, so the CDC is often brightly lit and crowded at night. The investigation letter often has incomplete information and no contact information, which requires the cooperation of the public security system.

The contents of the telephone stream include the following:

1. The traffic dispatcher will first verify whether the contents in the investigation letter are accurate, whether they are in Shenyang, and the current specific location. If you are in the local area, you will continue to ask the basic information of the transferred person (occupation, ID number, current address, work unit, etc.). ), arrival time, as well as the trajectory and specific time of action in recent days, who contacted, where they went, and the people who lived together;

2. If the diversion object is not in the local area, it will ask its current location, send an investigation letter to the provincial CDC, and send it to the local CDC for investigation. In the case of non-cooperation, the investigation letter will be transmitted horizontally with the trajectory of the object until the person is found and controlled.

Legal basis: Article 18 of the Law of People's Republic of China (PRC) on the Prevention and Control of Infectious Diseases.

Disease prevention and control institutions at all levels shall perform the following duties in the prevention and control of infectious diseases:

(a) the implementation of infectious disease prevention and control planning, plans and programs;

(2) Collecting, analyzing and reporting the monitoring information of infectious diseases, and predicting the occurrence and epidemic trend of infectious diseases;

(three) to carry out epidemiological investigation, on-site treatment and effect evaluation of infectious diseases and public health emergencies;

(four) to carry out laboratory detection, diagnosis and pathogen identification of infectious diseases;

(five) the implementation of immunization programs, responsible for the use and management of preventive biological products;

(six) to carry out health education and consultation, popularize the knowledge of infectious disease prevention and control;

(seven) to guide and train lower-level disease prevention and control institutions and their staff to carry out infectious disease monitoring;

(eight) to carry out applied research and health evaluation on the prevention and treatment of infectious diseases and provide technical advice.

National and provincial disease prevention and control institutions are responsible for monitoring the occurrence, prevalence and distribution of infectious diseases, predicting the epidemic trend of major infectious diseases, proposing prevention and control countermeasures, participating in and guiding the investigation and handling of epidemic situations, carrying out pathogen identification of infectious diseases, establishing a testing quality control system, and carrying out applied research and health evaluation.

Municipal and county-level disease prevention and control institutions with districts are responsible for implementing plans and programs for the prevention and control of infectious diseases, organizing the implementation of immunization, disinfection and control of biological hazards of vectors, popularizing knowledge on the prevention and control of infectious diseases, monitoring and reporting local epidemic situations and public health emergencies, and conducting epidemiological investigations and detection of common pathogenic microorganisms.

Article 19 The State establishes an early warning system for infectious diseases.