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Epidemiological surveillance is the continued watchfulness over the distribution and trends of incidence through the systematic collection, consolidation and evaluation of morbidity and mortality reports and other relevant data, and the regular dissemination of data to all who need to know. As such, it is a key element in epidemiology. This term may be used in two ways. In broader sense, surveillance has been equated with the routine health information system which gives idea about the total health situation. in narrower sense, it is used to refer to specific information system pertaining to specific disease or any other health related event. ==Purpose== 1. assessing magnitude of problem 2. monitoring implementation of health programs 3. understanding local epidemiology of the problem 4. assessing changes in trend of disease or its distribution 5. identifying specific groups at risk 6. to enable predictions about pattern of occurrence of diseases 7. in assessing the impact of the programme intervention for control of diseases 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Epidemiological surveillance」の詳細全文を読む スポンサード リンク
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