The main reasons why fever reports need to be investigated include the following:
1. Confirmation of the source of infection and means of transmission: through investigation, it is possible to trace the possible sources and locations of infection, and to grasp the activities of cases during the viremia period, so as to understand the ways and means of transmission of the disease
2. Assessment of the scope of the outbreak and the risk: investigation can help to grasp the three distributions of the epidemic (time, space, and population), determine the scope of the wave, and assess the vector density of the surrounding environment, so as to assess the risk of transmission
3. Guiding preventive and control measures: through epidemiological investigations, targeted preventive and control measures and recommendations can be put forward, such as mosquito vector Control, environmental hygiene improvement, etc., in order to effectively control the further spread of the epidemic
The specific investigation content and methods of fever report include:
1. Case investigation: including the basic situation of the case, pre-morbidity travel history and exposure history, consultation, clinical situation, and the number of patients. exposure history, medical consultation, clinical manifestations, laboratory examination, diagnosis and referral, etc.
2 Case search: for imported cases, it is necessary to trace the travel history in detail and search for suspected cases among the people who have left the country together; for local infections, it is necessary to carry out a household survey and search for cases in the core areas Search for cases
3. Investigation of environmental factors: collect information on the natural ecology, population and living conditions, environment and sanitation facilities in the epidemic sites and early warning areas, and analyze the impact of natural and social factors on disease transmission
4. Mosquito vector survey and assessment: in the core and early warning areas Carry out mosquito vector density surveys to assess the risk of epidemic transmission and the effectiveness of vector control.
Processes and standards for reporting fever:
1. Epidemic detection and reporting: During the influenza epidemic season, disease prevention and control organizations should regularly Carry out active surveillance of influenza-like illnesses and early detection of outbreaks
2. Investigation and treatment: Upon receipt of the report, the disease prevention and control organization should carry out investigation and treatment in a timely manner, fill in the “Influenza and Influenza-like Case Outbreak Epidemic Surveillance Report Form”, and report it through the “Disease Surveillance Information Reporting Management System” entry
3. Data analysis and reporting: collate and analyze epidemiological data, assess the risk of transmission, write an epidemiological investigation report, put forward proposals for mosquito vector control measures