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百日咳是我县儿童主要的急性呼吸道传染病之一，实行计划免疫前表现为周期性大流行，随着计划免疫的推行，发病率呈明显下降趋势。为了解其流行规律，给制定防制措施提供依据，现将我县１９５６～１９９６年百日咳疫情资料分析如下。１ 流行概况沂水县的百日咳防治工作，４０
Pertussis is one of the major acute respiratory infectious diseases of children in our county. Before the implementation of planned immunization, it showed a cyclical pandemic. With the implementation of planned immunization, the incidence rate showed a significant downward trend. In order to understand its prevailing laws to provide a basis for the development of control measures, now I County County pertussis epidemic data from 1956 to 1996 are as follows. 1 epidemic situation Yishui County Pertussis prevention and control work, 40