论文部分内容阅读
乙脑是一种自然疫源性疾病，其发生与当地地理环境、气象因素、传播媒介的种类、数量及季节消长等因素有密切关系。因此开展乙脑的地理流行病学调查对于阐述不同地区的乙脑流行规律，以采取相应的预防措施有重要意义。为此我们于1990～1994年开展了这方面的调查研究，报告如下
JE is a natural foci disease, its occurrence and the local geographical environment, meteorological factors, the type of media, the number and the seasonal growth and other factors are closely related. Therefore, to carry out the geographical epidemiological investigation of JE is very important for explaining the epidemic pattern of JE in different regions in order to take appropriate precautionary measures. To this end, we carried out investigations and studies in this area from 1990 to 1994. The report is as follows