一、目的流行病学调查是传染病预防控制的关键措施和重要工作环节。做好传染性非典型肺炎流行病学调查对于指导疫情的预防和控制至关重要 ,其主要目的是 :1 .核实诊断 ,查找传染源和传播途径 ;2 .追踪和管理病例的密切接触者 ,防止疾病的进一步传播 ;3 .掌握疫情的动态变化和影 First, the purpose of Epidemiological investigation of communicable disease prevention and control of key measures and an important part of the work. To do a good job in epidemiological investigation of SARS is crucial for guiding the prevention and control of the epidemic. Its main purposes are: 1. To verify the diagnosis and find sources of infection and transmission routes; 2. To track and manage the close contacts of the cases, Prevent the further spread of the disease; 3 master the dynamic changes and shadow of the epidemic