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陕西是我国流行性出血热(EHF)发病最早和重发病省份之一,但汉中地区以往被认为是EHF非疫区。1984年汉中南郑和勉县发现本病,以后每年均有发病,疫区扩大。我们于1984年至1989年对汉中地区EHF的流行病学和病原学进行了研究,1989年作者从褐家鼠和EHF病人血清中分离到EHF病毒,进一步证实本病在汉中地区存在。现将结果报告如下。 材料与方法 一、疫情资料 每年收集各发病县(市)核实的发病数、死亡数及人口总数,计算发病率、死亡率和病死率。疫区制定标准:临床诊断并经特异性血清学检测证实的EHP病例,经流行病学调查确为当地感染者。 二、人群血清学调查 从发病地区采集病人、疑似
Shaanxi is one of the earliest and re-onset provinces of epidemic hemorrhagic fever (EHF) in China, but Hanzhong was formerly regarded as a non-endemic EHF. In 1984 Hanzhong Nanzheng and Mianxian found the disease, every year after the onset, the epidemic expanded. We studied the epidemiology and etiology of EHF in Hanzhong from 1984 to 1989. In 1989, the authors isolated the EHF virus from the brown rat and EHF patient serum, further confirming the existence of this disease in Hanzhong. The results reported below. Materials and methods 1. Epidemic data The incidence, death and population of all epidemic counties (cities) were collected each year, and the morbidity, mortality and mortality were calculated. The epidemic area to develop standards: clinical diagnosis and confirmed by specific serological test of EHP cases, epidemiological survey confirmed as local infection. Second, the crowd serological survey collected from the patient’s area, suspected