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目前一些传染病正在严重危害着人类的健康。为更加有效地控制传染病的发生提出一些具有科学依据的预防措施 ,我们回顾分析了 1990— 1999年河北省疾病监测区甲乙丙类传染病的发病趋势 ,并与全国疾病监测区公布的同类数据进行对比分析 ,报告如下。1 材料与方法1.1材料 按照现
At present, some infectious diseases are seriously endangering human health. In order to more effectively control the occurrence of infectious diseases and put forward some scientifically based preventive measures, we reviewed and analyzed the trend of the epidemics of A, B and C infectious diseases in the disease surveillance areas of Hebei Province from 1990 to 1999 and compared them with the same data published in the national disease surveillance area For comparative analysis, the report is as follows. 1 Materials and Methods 1.1 Materials in accordance with the present