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里县地处冀中平原,总面积650平方公里,人口36万,辖21个乡230个自然村。卫生状况一般。1986年8～9月,县内发生了一批不明原因高热为主要症状的病例,经调查证实为一起鼠型斑疹伤寒流行。 本调查根据疫情,以不明病因的发烧且用解热剂效果不佳的患者为重点调查对象,对21个乡88个自然村的297例病人和95名健康接触者,进行了个案调查。同时对其中277例病人和76名健康人采静脉血,供血
County is located in the Jizhong plain, with a total area of 650 square kilometers, population 360,000, administer 21 townships 230 natural villages. General health status. From August to September 1986, a number of cases of high fever of unknown cause took place in the county, and the investigation confirmed that it was a murine typhus epidemic. According to the epidemic situation, the survey mainly focused on the patients with fever of unknown etiology and those who did not use antipyretics. A total of 297 patients and 95 healthy contacts from 88 villages in 21 townships were investigated. At the same time, 277 patients and 76 healthy people were collected blood and blood