【摘要】 目的　为了探明流行性出血热流行因素的变化 ,导致其流行规律演变。方法　运用流行病学、血清学、病原学方法 ,对EHF数十年的流行特征进行分析研究。结果　由于EHF流行因素的改变 ,引起了EHF流行规律发生了一系列的变化 ,疫情总体趋于稳定 ,老疫区、重疫区发病有所下降 ,低发区、新发区发病增多 ;EHF的季节分布和人群分布也发生相应改变 ;疫区及疫源地从低海拔地区向高海拔地区蔓延 ;在病原研究方面 ,首次发现了我国除姬鼠型和家鼠型以外的汉坦病毒新的血清型。结论　探讨EHF流行规律的演变 ,对制定适时的防治对策提供科学依据。更多还原

【Abstract】 Objective In order to investigate the evolution of EHF epidemic regularity due to change of epidemic factor of EHF.Methods we studied the characteristic of EHF epidemic for decades with the method of epidemiology and pathogenology.Results The results showed that the epidemic regularity of EHF generated variations as alteration of epidemic factor. The morbidity was stabile as a rule for a few years. The morbidity descented in old and serious epidemic areas. But it ascented in new and low incidence areas. The distribution of season and people brought up correspond modify. The epidemic areas and focus extend from low altitude region toward high altitude region. On pathogen, we found new serotype of Hantaan virus apart from HNTV and SEOV. Conclusions We would provide the science reference for the preventive strategy according to the research of the evolution on epidemic regularity of EHF.更多还原