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1 概述 当某种疾病流行时,需迅速采取公共卫生行动,以查明原因并实施控制措施。但往往由于情况紧迫,常又不能马上找到明显的原因,因此处理这类事情必不可少的一步就是进行流行病学调查,即先确定病例定义,进行病例监测,描述病例和可疑的因素的分布,分析可能的原因,最后按流行病学结论实施公共卫生干预。对传染病来说,问题容易找到,
1 Overview When a disease is endemic, prompt public health action is required to identify the cause and implement control measures. However, often due to the urgency of the situation, and often can not find a clear reason, so an indispensable step in dealing with this kind of thing is to carry out epidemiological investigations, which first determine the case definition, case monitoring, description of cases and distribution of suspicious factors , Analyze possible causes, and finally implement public health interventions based on epidemiological findings. For infectious diseases, the problem is easy to find,