The scope of infectious disease detection mainly includes case surveillance, pathogen tracing, epidemic analysis, early warning and response, risk assessment, international cooperation, and public education. Its core objectives are to promptly identify potential risks, interrupt transmission chains, reduce health threats, and provide a basis for prevention and control strategies based on scientific data.
Case Surveillance and Reporting:
Reporting of Notifiable Infectious Diseases: According to the Law on Prevention and Control of Infectious Diseases, medical institutions must report notifiable infectious diseases (such as COVID-19, influenza, and HIV/AIDS) within the prescribed time limit.
Syndrome Surveillance: Non-specific surveillance based on symptoms (such as fever and diarrhea) to assist in identifying emerging or abnormal diseases.
Cluster Case Identification: Focusing on sudden outbreaks of disease in the same region or group to investigate whether there is related transmission.
Pathogen Surveillance and Laboratory Testing:
Pathogen Identification: Confirming the type of pathogen (such as viruses or bacteria) through laboratory testing.
Gene Sequencing and Mutation Tracking: Analyzing pathogen gene sequences to monitor changes in the transmissibility and pathogenicity of variant strains.
Drug Resistance Surveillance: Assessing changes in the sensitivity of pathogens to drugs (such as antibiotics and antiviral drugs) to guide clinical medication.
Epidemic Analysis and Forecasting
Transmission Chain Tracing: Reconstructing case contact history and activity trajectories through epidemiological investigations to clarify the scope of transmission.
Trend Modeling: Predicting epidemic development using mathematical models and evaluating the effectiveness of prevention and control measures (e.g., quarantine policies, vaccination).
Geographic Information Analysis: Creating epidemic heat maps by combining spatiotemporal data to identify high-risk areas.
Early Warning and Response Mechanism
Tiered Early Warning: Issuing different levels of alerts based on the severity of the epidemic (e.g., national/provincial response).
Multi-departmental Collaboration: Coordinating actions such as lockdown, epidemiological investigation, and resource allocation among health, transportation, and public security departments.
Emergency Response Drills: Regularly simulating scenarios of sudden infectious disease outbreaks to optimize response procedures.
Risk Assessment and Vulnerable Population Management
Regional Risk Dynamic Assessment: Determining risk levels based on factors such as population density, medical resources, and environmental conditions.
Key Population Protection: Strengthening health monitoring and intervention for groups such as the elderly, patients with chronic diseases, and children.
Cross-border Importation Prevention and Control: Quarantine inbound personnel and goods to prevent the introduction of pathogens from abroad.
