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过去学者们[1]曾采取兰州市人畜血清用中和试验以调查流行性脑炎在本市不显性感染的情况,其结果阳性率较低(4%);同时近数年来,兰州市各医院均未发现临床上疑似流行性脑炎的病例,虽五六年夏曾有一例病例报告[2],但只依据临床症状和双份血清做补体结合试验的结果作为诊断,无病原学确证,因此采取兰州市正常人和牲畜血清来检查流行性脑炎之中和抗体水平,以确定近年来该病是否已蔓延及本市是很必要的;为此,我们曾于57年9月份至58年元月份在本市区内(包括十里店、榆中县等地区)先后采取正常成年人,及猪、绵羊、狗、鸽子血以进行调查。
In the past, scholars [1] had taken Lanzhou Municipal People’s Livestock and Serum Neutralization Test to investigate the epidemic encephalitis in the city was not dominant infection, the results of the low positive rate (4%); the same time, recent years, Lanzhou None of the hospitals found any cases of clinically suspected epidemic encephalitis. Although there was a case report in the summer of May-June 2, the diagnosis was based on the clinical symptoms and the results of complement serum tests performed on double serum, Confirm, so to take Lanzhou normal and livestock serum to check the level of neutralizing antibodies in encephalitis in order to determine whether the disease has spread in recent years and the city is necessary; for this reason, we have in September 57 By January 58, normal adults and pigs, sheep, dogs and pigeons blood were taken for investigation in this urban area (including Shilipu and Yuzhong counties).